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CVE-2026-76461 affects Cisco AsyncOS Software for Cisco Secure Email Gateway.
The flaw is in email parsing logic.
Insufficient validation causes the vulnerability.
The weakness is CWE-89.
CWE-89 is SQL Injection.
An unauthenticated remote attacker can exploit it.
The attacker sends a crafted email message.
The message passes through an affected device.
The email contains malicious SQL statements.
The parser fails to neutralize special SQL elements.
Arbitrary SQL statements can execute.
SQL execution leads to command execution.
Commands execute with root privileges.
Root privileges affect the underlying operating system.
No authentication or local access is required.
The attack vector is remote.
Cisco Systems, Inc. is the source.
CISA added it to Known Exploited Vulnerabilities.
CISA name is Cisco Secure Email Gateway SQL Injection Vulnerability.
CISA date added is September 14, 2026.
CISA due date is September 17, 2026.
Required action is apply mitigations.
Required action follows vendor instructions.
Required action follows CISA BOD 26-04.
Required action follows Forensics Triage Requirements.
Affected versions include 14.0.0-698, 13.5.1-277, 13.0.0-392.
Affected versions include 14.2.0-620, 13.0.5-007.
The lists 23 versions total.
NVD published date is Sep 14, 2026.
NVD last modified is Sep 14, 2026.
Enrichment is ongoing.
CVSS, CWE, and CPE data are pending.
Successful exploit compromises the gateway.
Compromise can expose email flow.
Expected patch date aligns with CISA due date.
DailyCVE Form:
Platform: Cisco Secure Email
Version: Multiple AsyncOS versions
Vulnerability : SQL Injection
Severity: Critical
date: Sep 14, 2026
Prediction: Sep 17, 2026
(end of form)
What Undercode Say:
Analytics:
ssh admin@<esa-host> "version" grep -Ei "select|union|sleep|benchmark|;--" /var/log/mail_logs curl -s https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json | jq '.vulnerabilities[] | select(.cveID=="CVE-2026-76461")'
Exploit: (Educational Purposes!)
swaks --server lab-esa.example --to victim@example --from attacker@example --header "Subject: CVE-2026-76461" --body "SQL_INJECTION_PLACEHOLDER"
python3 - <<'PY'
payload = "CVE-2026-76461_EDU_TEST"
print("Crafted email body:", payload)
PY
Protection: from this CVE
ssh admin@<esa-host> "version" Apply Cisco vendor mitigations Follow CISA BOD 26-04 Follow Forensics Triage Requirements Discontinue use if mitigations are unavailable
Impact:
Root command execution.
Gateway compromise.
Email flow exposure.
CISA KEV due date Sep 17, 2026.
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Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
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