critical Known exploitedREV. 01
CVE-2026-76519Cisco Secure Email Gateway — Crafted Attachment Root File Write
When the file reputation service is enabled, the Advanced Malware Protection (AMP) feature of Cisco Secure Email Gateway mishandles attachments. An unauthenticated attacker can send one crafted email to write arbitrary files and run commands as root.
Read the risk
THE VITAL STATS- CVSS score
- 9.8/ 10 CVSS v3.1
- EPSS probability
- 2.2% Likelihood of exploitation
- Attack complexity
- Low Conditions needed to exploit
- Known exploited
- Yes — CISA KEV
- CVE published
- 2026-10-14
- Added to KEV
- 2026-10-14
- CISA due date
- 2026-10-17
- Exploit published
- Not recorded
- Confidence
- high
- Kill chain
- initial access
- MITRE ATT&CK
- T1190
- Severity
- critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attacker needsThe ability to send an email through an affected device with the file reputation service enabled.
Behind the card
3 REFERENCES- 01CVE recordNVD recordnvd.nist.gov
- 02CISACISA Known Exploited Vulnerabilities catalogcisa.gov
- 03Vendor advisorysec.cloudapps.cisco.comsec.cloudapps.cisco.com
Field-level provenanceTRACE THE SOURCES +
Which source supports each field, when it was retrieved, and who extracted it.
| Fields | Source | Retrieved | Extractor | Confidence |
|---|---|---|---|---|
| cvss, exploitation.attack_complexity, exploitation.exploit_available, published_at, references | nvd.nist.gov | 2026-11-05 | scrty-crds-pipeline/0.1 | high |
| exploitation.known_exploited, exploitation.kev_added, exploitation.kev_due | cisa.gov | 2026-11-05 | scrty-crds-pipeline/0.1 | high |
| epss | api.first.org | 2026-11-05 | scrty-crds-pipeline/0.1 | high |
| title, subtitle, summary, severity, remediation, mitre_attack, kill_chain, recommended_action, confidence, tags, exploitation.prerequisites | nvd.nist.gov | 2026-11-05 | claude-code | high |
Printing history
THE RECORD- r1Initial base card
History unavailable — this build has no Git history for the card file.