CVE-2026-1109: A vulnerability was detected in cijliu librtsp up to 2ec1a81ad65280568a0c7c16420d7c10fde13b04. The impacted element is the function rtsp_parse_request...

Description

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.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS 4.0

1.9/10

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.22%

12.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Cijliu	Librtsp	<= 2021-03-14

References

https://github.com/fizz-is-on-the-way/vuls_protocol/blob/main/librtsp_rtsp_parse_request/librtsp_rtsp_parse_request.mdExploit, Third Party Advisory
https://vuldb.com/?ctiid.341701Permissions Required, VDB Entry
https://vuldb.com/?id.341701Third Party Advisory, VDB Entry
https://vuldb.com/?submit.732599Third Party Advisory, VDB Entry

Timeline

Published: Jan 18, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is 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.

How severe is CVE-2026-1109?

CVE-2026-1109 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.22% probability of exploitation in the next 30 days.

How do I fix CVE-2026-1109?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

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