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Weekly Cybersecurity Newsletter Bulletin – Microsoft 0-day, FortiOS, PAN-OS Flaw, Revolut Data Breach, and 20+ Stories

Weekly roundup: Microsoft patches 973 flaws including two actively exploited zero-days; FortiOS CAPWAP flaw deploys PivotC2 RAT; PAN-OS root RCE disclosed.

Microsoft's September 2026 Patch Tuesday fixed 973 vulnerabilities, including two zero-days under active exploitation: CVE-2026-85880 (Windows ALPC) and CVE-2026-81963 (Windows Update Stack), both elevation-of-privilege bugs. SOCRadar reported active exploitation of CVE-2025-25249 (CVSS 9.8) in FortiOS CAPWAP, deploying a Node.js RAT called PivotC2 that exfiltrates Exchange mailboxes to Wasabi cloud storage; 178 devices were compromised out of 30,000 scanned IPs, attributed to a Russian-speaking financially motivated group. Palo Alto disclosed CVE-2026-0310, a 9.2-rated buffer overflow enabling root code execution on PA-Series firewalls, and Fortinet disclosed CVE-2026-84393, a ZTNA certificate validation MITM flaw. Cyera also revealed CVE-2026-6471 ('PostGREShell'), a 12-year-old PostgreSQL logical-decoding flaw allowing code execution via REPLICATION-privileged accounts.

Cyber Security NewsSep 14, 03:10 UTC · 2d agoExploit / PoC in the wildCVE-2026-85880 CVE-2026-81963 CVE-2025-25249+3 CVEs3

14th September – Threat Intelligence Report

Check Point weekly digest: Microsoft's record 974-vuln Patch Tuesday ships two actively exploited Windows zero-days; IDScan.net, Mathspace, Revolut suffer breaches.

Microsoft's September 2026 Patch Tuesday addressed a record 974 vulnerabilities, including two actively exploited privilege-escalation zero-days, CVE-2026-85880 and CVE-2026-81963, plus 20 flaws allowing unauthenticated remote code execution. Disclosed breaches include IDScan.net (identity documents), Mathspace (over 1 million people via Metabase CVE-2026-72898), Revolut, and Florida DMV (ShinyHunters). GitLab fixed critical CVSS 10.0 path traversal CVE-2026-85706, and MikroTik fixed chainable RouterOS flaws CVE-2026-67276 and CVE-2026-86060. The report also covers the PuzzleMask LLM jailbreak technique, GoldFactory's Gigabud Android fraud, and the BlueMoon Chromium exploit chain (CVE-2026-85046).

Check Point ResearchSep 14, 12:22 UTC · 2d agoExploit / PoC in the wildCVE-2026-72898 CVE-2026-85880 CVE-2026-81963+4 CVEs2· 1 read

Google Pixel phones pwned in zero-click attacks

CISA added actively exploited zero-click Pixel modem flaw CVE-2026-58704 to its KEV catalog, giving federal agencies three days to patch.

Google disclosed CVE-2026-58704, a high-severity improper authorization flaw in Pixel phones' cellular modems that bypasses permission checks and escalates privileges with no user interaction, noting limited, targeted exploitation. CISA added it to the Known Exploited Vulnerabilities Catalog with a September 19 deadline for federal agencies. Such zero-click modem bugs are a frequent vector for commercial spyware. The Register also notes two recently KEV-listed Chromium V8 flaws, CVE-2026-85046 and CVE-2026-87491, which Proofpoint says four espionage groups chained in intrusions.

The Register · Security17:56 UTC · 1h agoExploit / PoC in the wild 8 sources CVE-2026-58704 CVE-2026-85046 CVE-2026-87491

Mass-Scanning Campaign Exploits Vite Flaw to Extract Cloud Credentials From Exposed Dev Servers

Mass-scanning campaign exploits CVE-2026-39364 in exposed Vite dev servers to steal AWS/Azure credentials, .env files, and Terraform state.

F5 Labs documented an August 2026 credential-harvesting campaign exploiting CVE-2026-39364 (CVSS 8.2), a Vite flaw allowing unauthenticated attackers to bypass server.fs.deny via query parameters like ?raw and ?import&raw. Attackers issue GET requests to /@fs/ endpoints to retrieve .env files, AWS and Azure credentials, terraform.tfstate, serverless.yml, and /proc data from dev servers exposed via --host or misconfigured Docker port mappings. Requests impersonate crawlers like Googlebot, ClaudeBot, and GPTBot, forge X-Forwarded-For headers, and largely originate from GCP ranges in the US, Belgium, Netherlands, Singapore, and Taiwan.

The Hacker NewsSep 15, 11:12 UTC · 1d agoExploit / PoC in the wild 4 sources CVE-2026-393641