[NEU] [hoch] Cisco Secure Email Gateway: Mehrere Schwachstellen
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.
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Cisco Secure Email Gateway ausnutzen, um beliebigen Code auszuführen – einschließlich der Ausführung von Code mit Root-Rechten –, Sicherheitsmaßnahmen zu umgehen, Daten offenzulegen oder zu manipulieren oder Denial-of-Service-Zustände herbeizuführen.
Details
Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-3353
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.
- unknownexploitedCisco Products Multiple Vulnerabilitieshkcert
- 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
- criticalCisco Secure Email Gateway and Secure Email and Web Manager Security Hardening Release: September 2026cisco-psirt
- criticalexploitedCisco Secure Email Gateway SQL Injection Vulnerabilitycisco-psirt
Recent advisories for Cisco Secure Email Gateway
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- unknownexploitedNCSC-2026-0368 [1.00] [H/H] Kwetsbaarheid verholpen in Cisco Secure Email Gatewayncsc-nl · 2026-09-14
- criticalexploitedCVE-2026-76461: A vulnerability in the email parsing of Cisco AsyncOS Software for Cisco Secure Email Gateway …nvd · 2026-09-14
- criticalCVE-2026-76443: As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Sec…nvd · 2026-09-14
- highCVE-2026-76442: As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Sec…nvd · 2026-09-14
- criticalCVE-2026-76441: As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Sec…nvd · 2026-09-14
- criticalCVE-2026-76440: As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Sec…nvd · 2026-09-14
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