Buffer overflow in Zoneminder
CVE-2026-102296
ZoneMinder before 1.38.4 contains static buffer overflow vulnerabilities in RemoteCameraHttp::GetResponse() that allow malicious HTTP cameras or intercepting attackers to overflow fixed-size buffers by sending oversized response headers. Attackers can send crafted HTTP responses with oversized status messages, Connection headers, Content-Type values, or multipart boundaries to corrupt parser state and crash the capture process or corrupt memory.
Vulnerability class: Buffer Overflow
Published .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/ZoneMinder/zoneminder (product)
- github.com/ZoneMinder/zoneminder/blob/1.38.3/src/zm_remote_camera_http.cpp (technical-description)
- github.com/ZoneMinder/zoneminder/commit/2596e5fb64c0348e615577b0ab08dc38b6dc6ed8 (patch)
- github.com/ZoneMinder/zoneminder/commit/813bf6f1a3ffc92c163352f2480477ba571fca5b (patch)
- github.com/ZoneMinder/zoneminder/releases/tag/1.38.4 (release-notes)
- github.com/ZoneMinder/zoneminder/security/advisories/GHSA-93j4-rcp9-9jx6 (vendor-advisory)
- www.vulncheck.com/advisories/zoneminder-before-1.38.4-buffer-overflow-via-http-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-102296?
- CVE-2026-102296 is a medium-severity vulnerability in Zoneminder, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.5/10. Published 2026-09-28.
- How severe is CVE-2026-102296?
- Medium severity. CVSS v3 base score is 6.5 out of 10.