Buffer overflow in Geovision Gv-Vms
CVE-2026-7372
A stack overflow vulnerability exists in the WebCam Server Login functionality of GeoVision GV-VMS V20 20.0.2. A specially crafted HTTP request can lead to an arbitrary code execution. An attacker can make an unauthenticated HTTP request to trigger this vulnerability. #### Stack-overflow via unconstrained sscanf The call to `sscanf` at [1] to split the `Buffer` variable into the `username` and `password` variables doesn't limit the size of the extracted content to match the destination buffers' sizes. In this case, if either the username or password decoded from the authorization string exceeds `40` characters (the size the stack variables `username` and `password`) then a stack overflow will occur. The data is controlled by an attacker, but sronger constraints (e.g. no null bytes) may make exploitation harder. A successful attack could lead to full code execution as SYSTEM on the machine running the service.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.008 (53.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 53.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.008 · change: +0.003
Affected products
- Geovision Gv-Vms — versions 20
- Geovision Gv-Vms Firmware
- Geovision Inc. Gv-Vms V20.0.2 — versions 20.0.2, 20.1.0.0, 20.0.2.10
Weakness classification (CWE)
References
- 0df08a0e-a200-4957-9bb0-084f562506f9 (vendor-advisory, Vendor Advisory)
- 0df08a0e-a200-4957-9bb0-084f562506f9 (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-7372?
- CVE-2026-7372 is a critical-severity vulnerability in Geovision Gv-Vms, classified under Out-of-bounds Write. CVSS score: 9.0/10. Published 2026-05-04.
- How severe is CVE-2026-7372?
- Critical severity. CVSS v3 base score is 9.0 out of 10.