Buffer overflow in Cijliu Librtsp
CVE-2026-1109
A vulnerability was detected in cijliu librtsp up to 2ec1a81ad65280568a0c7c16420d7c10fde13b04. The impacted element is the function rtsp_parse_request. The manipulation results in buffer overflow. Attacking locally is a requirement. This product takes the approach of rolling releases to provide continious delivery. Therefore, version details for affected and updated releases are not available. The vendor was contacted early about this disclosure but did not respond in any way.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.002 (14.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 15th percentile — 14.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000
Affected products
- Cijliu Librtsp — versions 2ec1a81ad65280568a0c7c16420d7c10fde13b04
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/fizz-is-on-the-way/vuls_protocol/blob/main/librtsp_rtsp_parse_reques… (related, Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2026-1109?
- CVE-2026-1109 is a medium-severity vulnerability in Cijliu Librtsp, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.3/10. Published 2026-01-18.
- How severe is CVE-2026-1109?
- Medium severity. CVSS v3 base score is 5.3 out of 10.