CVE-2026-76519
Cisco Secure Email Gateway Arbitrary File Write Vulnerability
At a glance
- Source
- NVD
- EPSS
- EPSS 2.15 % · percentile 82 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- cisco
- NVD status
- Analyzed
Description
A vulnerability in the Advanced Malware Protection (AMP) feature of Cisco Secure Email Gateway could allow an unauthenticated, remote attacker to write arbitrary files on the underlying operating system. This vulnerability is due to improper handling of email attachments when the file reputation service is enabled. An attacker could exploit this vulnerability by sending an email that contains a crafted attachment through an affected device. A successful exploit could allow the attacker to write arbitrary files and execute commands with root privileges on the underlying operating system.
Weaknesses (CWE)
- CWE-23 — Relative Path Traversal
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | CRITICAL 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | cisco |
| CVSS 3.1 | CRITICAL 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | NVD · psirt@cisco.com (Secondary) |
European references
- ENISA EUVD · EUVD-2026-101420
- GCVE · GCVE-0-2026-76519
CERT-FR advisories
- CERTFR-2026-AVI-1325 — Vulnérabilité dans Cisco AsyncOS Software pour Secure Email Gateway · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:*≥ 15.0 < 15.5.5-014cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:*≥ 16.0 < 16.5.0-780
Affected products
| Product | Versions |
|---|---|
| Cisco · Cisco Secure Email | affected 14.0.0-698 ; affected 13.5.1-277 ; affected 13.0.0-392 ; affected 14.2.0-620 ; affected 13.0.5-007 ; affected 13.5.4-038 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| CISA Known Exploited Vulnerabilities | CC0 1.0 |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |