SAP’s September 2026 security patch day (covered 8 September 2026 by BleepingComputer and SecurityWeek) includes CVE-2026-44756, a maximum-severity memory-corruption bug in Extended Passport (EPP) processing in the SAP kernel, dubbed OVERPASS by Onapsis. Missing boundary checks on externally supplied length fields during EPP deserialization can let unauthenticated attackers run OS commands as the SAP installation owner, recover DB credentials/password hashes, read live user sessions, and modify data/binaries. Onapsis says EPP is hit as a session opens (before authz controls), via web/ICM, SAP GUI, and RFC; products relying on the vulnerable kernel include S/4HANA, ERP/ECC, NetWeaver, Web Dispatcher, BW/4HANA, Enterprise Portal, PI/PO, Solution Manager and others. Onapsis estimates >10,000 internet-facing SAP web interfaces; no in-the-wild exploitation indicators reported for OVERPASS at publish. Same cycle: CVE-2026-58240 (S4GET) missing authentication on NetWeaver Message Server enabling unauth cluster RCE as <sid>adm; also critical CVE-2026-76969 (CAP credential disclosure) and CVE-2026-66768 (NetWeaver access control). Apply SAP Security Notes for September 2026 immediately; do not invent CVSS for sister CVEs beyond vendor/Onapsis statements. Primary research: Onapsis; wires: BleepingComputer / SecurityWeek.
BleepingComputer — SAP OVERPASS CVE-2026-44756 (8 Sep 2026)
Microsoft’s 8 September 2026 Patch Tuesday is its largest security release on record. BleepingComputer counts 966 flaws shipped on Patch Tuesday itself (105 Critical, including 81 RCE), excluding 204 flaws fixed earlier in the month in cloud products; SecurityWeek and Krebs count about 974 CVEs across the broader September bundle. Two actively exploited elevation-of-privilege zero-days are fixed: CVE-2026-81963 (Windows Update Stack link-following to SYSTEM; credited to Romain Deperne and MSTIC) and CVE-2026-85880 (Windows ALPC heap buffer overflow to SYSTEM / AppContainer sandbox escape; Volexity and Proofpoint researchers). Coverage notes ~20 potentially wormable unauthenticated RCEs in the set and calls out Exchange (CVE-2026-55007), SharePoint (CVE-2026-69465), RDS (CVE-2026-69525), SQL (CVE-2026-65669), and Authenticator (CVE-2026-80097) among high-priority items. Microsoft attributes the volume increase partly to AI-assisted vulnerability discovery. NEW 8 Sep KEV: CISA added both exploited zero-days to the Known Exploited Vulnerabilities catalog on 2026-09-08 (catalog 2026.09.08) — CVE-2026-81963 and CVE-2026-85880 (FCEB dueDate 2026-09-22). WA SOC advisory 20260909001 (9 September 2026, TLP:CLEAR) summarises the September Monthly Updates as addressing 973 vulnerabilities, highlights critical CVE-2026-69730 and CVE-2026-69525 (CVSS 9.8) plus the two known-exploited EoPs (CVSS 7.8), notes Microsoft detected exploitation of one or more of the mentioned vulnerabilities, and says WASOC has not received WA Government exploitation reports at the time of writing. Prioritise the two exploited EoPs, internet-facing roles, and Extended Security Updates where applicable.
BleepingComputer — September 2026 Patch Tuesday (8 Sep 2026)
The Hacker News (8 September 2026) summarises Red Hat guidance that a FreeIPA flaw lets a client that has never logged in create a Kerberos identity of its choosing in the directory and end up in the administrators group. FreeIPA stores identities in 389 Directory Server over LDAP; the attack also needs a second flaw in that database software. Wire abstract does not list CVE IDs or fixed package versions — operators should pull current RHEL/FreeIPA errata from Red Hat rather than inventing patch levels. Primary wire: The Hacker News pending RHSA deep-link. Watchlist relevance: Red Hat / identity plane.
Progress Telerik critical security bulletin (updated 22 July 2026) covers a chain in UI for ASP.NET AJAX RadAsyncUpload / RadPersistenceManager / RadDockLayout (CVE-2026-13181 through CVE-2026-13186 and CVE-2026-13190). Unauthenticated remote code execution is possible when preconditions are met (reachable RadAsyncUpload with FileUploaded handler reading UploadResult; explicit non-default Telerik.AsyncUpload.ConfigurationEncryptionKey). CVE-2026-13181 is CVSS 3.1 8.1 High (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H). Fixed in 2026.2.708 (2026 Q2 SP1); affected RadAsyncUpload builds from 2010.1.309 through 2026.2.519. NEW material this window: TantoSec (7 September 2026) published a full write-up and public exploit tooling (telerik-rau-exploit) turning the AES-CBC padding oracle into webshell/in-memory payloads. Progress/Telerik state no confirmed in-the-wild exploitation in the bulletin era; treat the newly public exploit tooling as elevating patch priority. Primary: Telerik KB bulletin; research: TantoSec.
N-able N-central 2026.3 Hotfix 4 (build 2026.3.1.14, status post 6 September 2026, notes last updated 5 September) fixes CVE-2026-86218, a critical pre-authenticated remote code execution flaw (static code injection) on the N-central server. WA SOC advisory 20260907002 (7 September 2026, TLP:CLEAR) rates it CVSS 10 Critical for N-central prior to 2026.3.1.14 and points to N-able security advisory aArVy0000002Ld3KAE. Hosted NCOD instances are already patched; on-premises customers must upgrade to HF4 immediately (HF3 / 2026.3.1.13 remains vulnerable to this CVE). The preceding Hotfix 3 (5 September) fixed high-severity authentication-bypass CVE-2026-86206 and CVE-2026-86207. NEW 8–9 Sep: CISA added CVE-2026-86218 to the KEV catalog on 2026-09-08 (catalog 2026.09.08) as static code injection / pre-auth RCE; FCEB dueDate 2026-09-11; forensicTriage Yes; KEV notes link the N-able status post and advisory aArVy0000002Ld3KAE. The Hacker News (9 Sep 2026) reports Huntress investigating compromise of a customer's fully patched N-central on 2026-09-04 (unclear whether CVE-2026-86218 or the HF3 pair CVE-2026-86206/86207); a separate N-able urgent customer notice says CVE-2026-86218 has been observed exploited in the wild. Shadowserver has tracked roughly 1,500 internet-exposed N-central servers. Distinct from desk card n-able-n-central-2026 (August CVE-2026-18556 / CVE-2026-18577 and ACSC AU exploitation). Primary: N-able status HF4; WA SOC 20260907002; CISA KEV / THN for exploitation update.
Sansec discovery/attack-from-4-Sep chain (template/GraphQL/failed-payment email → Linux backdoor). NEW material: Sansec updated 7 Sep 2026 20:45 UTC — StyleSmuggler is CVE-2026-75650 (CVSS 10.0). Adobe published emergency hotfix APSB26-146 on 7 Sep 2026 ~20:20 UTC (priority 1) as composer patch VULN-39341 from repo.magento.com; Adobe tested against 2026-aug releases of Adobe Commerce 2.4.4–2.4.9, Magento Open Source 2.4.4–2.4.9, and Adobe Commerce B2B 1.3.3–1.5.3. Exploitation continued after July/August 2026 patch levels; Sansec still advises scan/IoC hunt (kworker/fc-cache/chronyd-style implants, rotate encryption key + credentials). Primary Sansec; vendor APSB26-146. NEW 8 Sep wire: BleepingComputer confirms Adobe’s emergency VULN-39341/APSB26-146 hotfix for CVE-2026-75650 and Sansec’s note that a second, unrelated attacker is also exploiting StyleSmuggler to drop a 485-byte PHP web shell exfiltrating via oast.site/Interactsh-style callbacks — rotate secrets and hunt both Linux-backdoor and PHP-webshell IoCs after patching. NEW 8 Sep KEV: CISA added CVE-2026-75650 to the Known Exploited Vulnerabilities catalog on 2026-09-08 (catalog 2026.09.08); product Adobe Commerce and Magento; FCEB dueDate 2026-09-11; forensicTriage Yes. NEW 10 Sep AU: iTnews reports ASD/ACSC critical alert — ACSC is aware of a substantial number of potentially vulnerable Adobe Commerce/Magento instances in Australia; exploitation needs /graphql exposed; StyleSmuggler injects via GraphQL styles properties into files such as payment-failure reports; patch ASAP and chase MSPs.
MikroTik published an important RouterOS security update on 3–4 September 2026 (supportsec bulletin and forum notice) with details withheld, shipping builds 7.25 beta 3, 7.24.2, 7.23.4 and 6.49.21 (7.24.2 and 7.23.4 later proved to be an incomplete fix; see the correction below). On 5 September 2026 CERT Polska disclosed six coordinated CVEs and confirmed active exploitation. UPDATE 23 September 2026 (The Hacker News technical analysis of CERT.PL MikroTrick): the actively exploited chain is CVE-2026-67279 (SSH state-machine / key-renegotiation skips auth success) combined with CVE-2026-86060 (login argv injection via username -2 → full-admin). CERT.PL's 5 Sep advisory confirmed exploitation but did not name that pair; some earlier write-ups incorrectly folded separate RSA key-forge CVE-2026-67276 into the chain — 67276 remains a distinct SSH auth bypass (needs account name + public modulus; yields that account only). Highest-impact standalone pair still includes CVE-2026-67276 (CERT.PL CVSS 9.2) and CVE-2026-86060 (CVSS 9.2). CVE-2026-67277 (CVSS 8.8) is unauthenticated bandwidth-test memory disclosure/crash. CVE-2026-67281 (CVSS 4.0 8.7 per CVE record) is unauthenticated WebFig /jsproxy file read that can disclose root-owned config stores. CERT.PL also lists CVE-2026-67278 and CVE-2026-67279 on the CVE details page. CERT.PL says the MikroTrick combination of two SSH flaws is being used for full takeover of devices with SSH on public networks; successful attacks creating a privileged user named ops have been seen from 82.192.72.4 since at least 2 September 2026, with 103.102.31.18 used in exploit attempts. Log IoCs include login failure for user -2 via ssh and user <name> added by ssh:-2@<ip>. Fixed releases set a Flagged marker when known compromise traces are found (absence of Flagged is not clean). Latvia's national CERT also reported increased MikroTik targeting and urged the same patched builds. Until patched: restrict SSH, WWW/WWW-SSL and bandwidth-test to trusted management nets; do not initiate TLS or built-in SSH clients from an unpatched box toward untrusted hosts. If Flagged or otherwise suspect: isolate, preserve logs/config, factory-reset and rebuild from a verified config, rotate secrets. Primary: CERT Polska active-exploitation advisory. UPDATE 10 September 2026: CISA added CVE-2026-86060 and CVE-2026-67277 to KEV (dateAdded 2026-09-10). UPDATE 25 Sep 2026: CISA also added CVE-2026-67279 (SSH state-machine / behavioural-workflow bypass — the MikroTrick auth-skip half) to KEV (dateAdded 2026-09-25; federal due 28 Sep). Internet-exposed SSH / bandwidth-test paths remain the priority; patch and hunt Flagged / ops / ssh:-2 IoCs. CORRECTION (21 Oct 2026): this card earlier gave 7.24.2 and 7.23.4 as fixed builds and advised 7.23.5 on the long-term channel. CERT Polska's advisory and the CVE-2026-67278 record say 7.24.2 and 7.23.4 contained an incomplete fix for CVE-2026-67278; the fixed releases are 7.24.3 (stable) and 7.23.6 (long-term) or later, and devices on 7.24.2 or 7.23.4 must be updated again. No source we cite mentions 7.23.5.
CERT Polska — RouterOS actively exploited (5 Sep 2026)
Google's Stable Channel Update for Desktop (4 September 2026) promotes Chrome to 152.0.7977.82/.83 on Windows and macOS and 152.0.7977.82 on Linux with 12 security fixes. High-severity CVE-2026-85046 is a type confusion in V8 that Google says allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page; Google states an exploit exists in the wild. NVD Secondary CVSS 3.1 is 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). Salvatore Gulizia (Serotav) reported it on 4 August 2026. CISA added CVE-2026-85046 to KEV (catalog entry dated 4 September 2026). WA SOC advisory 20260907001 (7 September 2026, TLP:CLEAR) covers the same Chromium V8 type confusion for Chrome, Edge, Brave and Vivaldi prior to those builds, notes CISA KEV, and says it has not received reports of exploitation on Western Australian Government networks at the time of writing. Distinct from desk card chrome-firefox-20260902 (2 Sep Critical UAF batch at 152.0.7977.75/.76) and cve-2026-79290 (25 Aug Aura/ANGLE). UPDATE 9 Sep: Proofpoint BlueMoon exploit kit (desk card bluemoon-exploit-kit-20260909) chains this CVE with an un-CVE'd V8 sandbox escape and Windows CVE-2026-85880; APT31 first seen 28 Aug, then other espionage clusters. Update Chrome promptly; Chromium browsers (Edge, Brave, Opera, Vivaldi) should follow vendor builds.
Chrome Stable Channel Update for Desktop (4 Sep 2026)
Wordfence (via The Hacker News, 4 September 2026) reports active exploitation of CVE-2026-14894 in the WordPress plugin Super Forms – Drag & Drop Form Builder. NVD/Wordfence describe missing file-type validation on the unauthenticated submit_form AJAX handler (session nonce obtainable via a separate nopriv endpoint), allowing unauthenticated arbitrary file upload and remote code execution. Wordfence CVSS 3.1 is 9.8 Critical. Affected: all versions through 6.3.313; fixed in 6.3.314. Wordfence says it blocked over 250,000 exploit attempts against this CVE (plus ~190,000 against Elementor Pro CVE-2026-32475 in the same reporting wave; Elementor stays on its own desk card). Observed Super Forms attacks POST to /wp-admin/admin-ajax.php with action=super_submit_form and a Base64 PHP web shell disguised as a data:image/gif payload (e.g. Mushr00w_upl.php); activity began 14 July 2026 and peaked above 40,000 requests on 18 August 2026. Upgrade Super Forms to 6.3.314+; hunt unexpected .php under uploads; keep WAF rules current. Distinct from cve-2026-32475 (Elementor Pro).
ConnectWise ScreenConnect™ 26.6.5 Security Patch bulletin (8 September 2026, Priority 1 High) assigns CVE-2026-84869 for a client-side condition that may allow files to be transferred and executed through an active remote Support/Access session without authorisation or Host confirmation. ScreenConnect servers are not impacted. CWE-862 Missing Authorization / CWE-269 Improper Privilege Management; CVSS 3.1 9.9 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H). Affected: ScreenConnect versions prior to 26.6.5. Remediation: upgrade to 26.6.5 or later, then reinstall Host clients and update Access agents (Cloud servers already remediated per vendor). Interim mitigation until clients are refreshed: remove TransferFiles (and TransferFilesInSession on legacy) from applicable roles/session groups — not a substitute for the patch. Earlier 3 September Guest File Transfer Advisory and Huntress late-August worm-like rogue ScreenConnect client chain (Quick Assist → wscript → VBScripts / User Run Key) remain relevant context; Shadowserver has tracked thousands of internet-exposed instances. CISA KEV listed CVE-2026-84869 on 11 September 2026 (dateAdded 2026-09-11; catalogVersion 2026.09.11); this card remains the single ScreenConnect file-transfer topic. Distinct from faronics-deploy-screenconnect-20260831. Primary: ConnectWise 2026-09-08 bulletin.
Broadcom VMSA-2026-0007 (3 September 2026, Critical) patches two privately reported host-escape-class bugs in VMware Workstation and VMware Fusion 25H2 and 26H1. CVE-2026-59346 is a VMXNET3 integer overflow (CVSSv3 up to 9.3) where a malicious actor with local administrative privileges inside a guest that uses the VMXNET3 virtual NIC may execute code on the host. CVE-2026-59347 is an HGFS stack-based buffer overflow (CVSSv3 up to 8.1) that can let a guest admin run code as the VMX process on the host. Fixed in Workstation and Fusion 26H1u1. No workarounds. Update 8 October: researcher 0xCyberstan published proof-of-concept code for CVE-2026-59346 on GitHub. It runs as a Linux kernel module inside a guest with a VMXNET3 adapter and writes transmit descriptors directly, so a 32-bit multiplication in the host's TCP segmentation offload path wraps, the buffer is undersized and guest data is written past it. The published code crashes the vmware-vmx process and powers off the VM; it is not a working code-execution exploit, and it needs admin rights inside the guest. The researcher ties it to the same code path patched for CVE-2025-41236. Broadcom does not report in-the-wild exploitation. These are desktop hypervisor bugs, not ESXi/vSphere advisories.
Exploit-DB entry 52680 (dated 3 September 2026) and Metabase advisory GHSA-w95f-x9v9-wv36 cover CVE-2026-59827: Metabase instances with an H2 database connection (including the default sample database) deserialize arbitrary Java objects from native H2 query result columns of type OTHER without validation. An authenticated user who can run native queries against an accessible H2 connection can execute OS commands on the Metabase host. Affected ranges in the exploit write-up include ≥0.58.0 <0.58.15, ≥0.59.0 <0.59.12, ≥0.60.0 <0.60.6.3, and ≥0.61.0 <0.61.1.4. Patch Metabase; remove or lock down sample/H2 connections; restrict who can run native SQL.
