Cisco Products Multiple Vulnerabilities
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Details
Original advisory: https://www.hkcert.org/security-bulletin/cisco-products-multiple-vulnerabilities_20260915
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Exploitation confirmedCVE-2026-76461Already exploited in the wild (CISA KEV) — the prediction phase is over. Patch now.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-76461 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-20353 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-76440 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-76441 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-76442 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-76443 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- highexploited[NEU] [hoch] Cisco Secure Email Gateway: Mehrere Schwachstellencert-bund
- unknownexploitedMultiples vulnérabilités dans les produits Cisco (15 septembre 2026)cert-fr-avis
- unknownexploitedCisco security advisory (AV26-921)cccs
- unknownexploitedNCSC-2026-0368 [1.00] [H/H] Kwetsbaarheid verholpen in Cisco Secure Email Gatewayncsc-nl
- criticalexploitedCVE-2026-76461: A vulnerability in the email parsing of Cisco AsyncOS Software for Cisco Secure Email Gateway …nvd
- criticalCVE-2026-76443: As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Sec…nvd
- highCVE-2026-76442: As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Sec…nvd
- criticalCVE-2026-76441: As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Sec…nvd
- criticalCVE-2026-76440: As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Sec…nvd
- criticalCVE-2026-20353: As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Sec…nvd
- criticalexploitedCisco Secure Email Gateway SQL Injection Vulnerabilitycisco-psirt
- criticalCisco Secure Email Gateway and Secure Email and Web Manager Security Hardening Release: September 2026cisco-psirt
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