A classic Stack-based buffer overflow exists in the zmLoadUser() function in zm_user.cpp…
Priority MEDIUM 48CWE-787Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
A classic Stack-based buffer overflow exists in the zmLoadUser() function in zm_user.cpp of the zmu binary in ZoneMinder through 1.32.3, allowing an unauthenticated attacker to execute code via a long username.
Why it matters now
EPSS 0.03309 88th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:zoneminder:zoneminder:*:*:*:*:*:*:*:* | up to 1.32.3 | Vulnerable | ZoneMinder |
- cpe:2.3:a:zoneminder:zoneminder:*:*:*:*:*:*:*:* Versions up to 1.32.3 Vulnerable ·ZoneMinder
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-6991
- 2026-10-03 Alias added: GHSA-j63x-h9vw-pgh3
References
More Zoneminder vulnerabilities
- TI-2025-40444 ZoneMinder v1.36.34 is vulnerable to Command Injection in web/views/image.php. CVSS 3.1CRITICAL 9.8
- TI-2023-11269 ZoneMinder vulnerable to Missing Authorization CVSS 3.1CRITICAL 9.8
- TI-2022-18665 Database log access in ZoneMinder CVSS 3.1CRITICAL 9.1
- TI-2022-12167 ZoneMinder before 1.36.13 allows remote code execution via an invalid language. CVSS 3.1CRITICAL 9.8
- TI-2024-29012 ZoneMinder Time-based SQL Injection CVSS 3.1CRITICAL 9.8
- TI-2023-11270 ZoneMinder contains Local File Inclusion vulnerability CVSS 3.1CRITICAL 9.8
Sources
- CVE-2019-6991 · CVE Program
- CVE-2019-6991 · NVD
- FIRST EPSS
- GHSA-j63x-h9vw-pgh3 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences