CVE-2026-76461

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score elevated to 9.8 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2026-09-14), indicating real-world exploitation has been confirmed by US federal agencies. the CNA's CVSS baseline 9.8 retained for reference (NVD's own analysis pending). Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, cna:cisco, epss, ghsa
Trending — KEV-added this weekExploited in the wild
9.8EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 2%CVSS: 9.8Exploit: cisa kev · ssvc activeExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A vulnerability in the email parsing of Cisco AsyncOS Software for Cisco Secure Email Gateway could allow an unauthenticated, remote attacker to execute arbitrary commands with root privileges on the underlying operating system. This vulnerability is due to insufficient validation in the email parsing logic. An attacker could exploit this vulnerability by sending a crafted email message that contains malicious SQL statements through an affected device. A successful exploit could allow the attacker to execute arbitrary SQL statements, leading to command execution with root privileges on the underlying operating system.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
99(Act)
EG Risk 99/100SSVC: Act

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation100% × 40%
Automatability100% × 15%
Action: Fix now — active exploitation, automatable, high impact.
EPSS PROB
2%
EPSS %ILE
80%
KEV
⚠ Exploited

Published

September 14, 2026

Last Modified

September 18, 2026

Advisory Details (2)

Auto-updated Sep 18, 2026
No patch confirmed yet.
generic

Cisco Secure Email Gateway SQL Injection Vulnerability

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-inj-2bLVGmhX
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-76461

Vendor Advisories for CVE-2026-76461(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 53× in last 7d / 53× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-19 13:44 UTCGHSA enrichment
  2. 2026-09-19 09:30 UTCGHSA enrichment
  3. 2026-09-19 05:15 UTCGHSA enrichment
  4. 2026-09-19 01:01 UTCGHSA enrichment
  5. 2026-09-18 20:47 UTCEG score recompute
  6. 2026-09-18 20:47 UTCGHSA enrichment
  7. 2026-09-18 19:28 UTCEPSS rescore
  8. 2026-09-18 19:20 UTCCISA KEV update
  9. 2026-09-18 16:33 UTCGHSA enrichment
  10. 2026-09-18 14:15 UTCCISA KEV update
  11. 2026-09-18 12:19 UTCEG score recompute
  12. 2026-09-18 12:19 UTCGHSA enrichment
  13. 2026-09-18 08:38 UTCGHSA enrichment
  14. 2026-09-18 04:24 UTCGHSA enrichment
  15. 2026-09-18 00:10 UTCGHSA enrichment
  16. 2026-09-17 19:56 UTCEG score recompute
  17. 2026-09-17 19:56 UTCGHSA enrichment
  18. 2026-09-17 15:42 UTCGHSA enrichment
  19. 2026-09-17 11:28 UTCGHSA enrichment
  20. 2026-09-17 07:11 UTCGHSA enrichment
  21. 2026-09-17 02:57 UTCGHSA enrichment
  22. 2026-09-16 22:44 UTCGHSA enrichment
  23. 2026-09-16 18:29 UTCGHSA enrichment
  24. 2026-09-16 14:15 UTCEG score recompute
  25. 2026-09-16 14:15 UTCGHSA enrichment
Show 28 more
  1. 2026-09-16 14:10 UTCCISA KEV update
  2. 2026-09-16 14:08 UTCEPSS rescore
  3. 2026-09-16 10:00 UTCGHSA enrichment
  4. 2026-09-16 05:47 UTCEG score recompute
  5. 2026-09-16 05:47 UTCGHSA enrichment
  6. 2026-09-16 05:15 UTCEPSS rescore
  7. 2026-09-16 01:33 UTCGHSA enrichment
  8. 2026-09-15 21:19 UTCGHSA enrichment
  9. 2026-09-15 17:05 UTCGHSA enrichment
  10. 2026-09-15 12:50 UTCGHSA enrichment
  11. 2026-09-15 08:39 UTCGHSA enrichment
  12. 2026-09-15 04:25 UTCEG score recompute
  13. 2026-09-15 04:25 UTCGHSA enrichment
  14. 2026-09-15 04:04 UTCEG score recompute
  15. 2026-09-15 04:04 UTCGHSA enrichment
  16. 2026-09-15 01:16 UTCGHSA enrichment
  17. 2026-09-14 21:02 UTCEG score recompute
  18. 2026-09-14 21:02 UTCGHSA enrichment
  19. 2026-09-14 20:21 UTCEG score recompute
  20. 2026-09-14 20:21 UTCGHSA enrichment
  21. 2026-09-14 20:15 UTCGHSA enrichment
  22. 2026-09-14 19:49 UTCEG score recompute
  23. 2026-09-14 19:49 UTCGHSA enrichment
  24. 2026-09-14 19:24 UTCCISA KEV update
  25. 2026-09-14 17:27 UTCEG score recompute
  26. 2026-09-14 16:45 UTCEG score recompute
  27. 2026-09-14 16:20 UTCEG score recompute
  28. 2026-09-14 16:19 UTCMITRE cvelistV5first tracked

Frequently asked(6)

What is CVE-2026-76461?
CVE-2026-76461 is a critical vulnerability published on September 14, 2026. A vulnerability in the email parsing of Cisco AsyncOS Software for Cisco Secure Email Gateway could allow an unauthenticated, remote attacker to execute arbitrary commands with root privileges on the underlying operating system. This vulnerability is due to insufficient validation in the email…
When was CVE-2026-76461 disclosed?
CVE-2026-76461 was first published in the National Vulnerability Database on September 14, 2026, with the most recent update on September 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-76461 actively exploited?
Yes. CISA added CVE-2026-76461 to the Known Exploited Vulnerabilities catalog on September 14, 2026, affecting Cisco Secure Email Gateway. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2026-76461?
CVE-2026-76461 has a CVSS v4.0 base score of 9.8 (CNA self-assessment; NVD's own analysis pending).
Which products are affected by CVE-2026-76461?
CVE-2026-76461 affects Cisco Secure Email Gateway. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2026-76461?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-76461, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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