Critical severity · published Apr 24, 2026
CVE-2026-41415
PJSIP: SIP Multipart CID URI Length Underflow
9.1
CVSS
0.3%
EPSS
No
On KEV
Description
PJSIP is a free and open source multimedia communication library written in C. In 2.16 and earlier, there is an out-of-bounds read when parsing a malformed Content-ID URI in SIP multipart message body. Insufficient length validation can cause reads beyond the intended buffer bounds. This vulnerability is fixed in 2.17.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 23% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PJ
pjproject · pjsip
< 2.17 · source: vendor
PJ
Pjsip · Teluu
before 2.17 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-41415
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-41415
Patch
https://github.com/pjsip/pjproject/commit/4225a93c16661538005017883fbc8f1ea1d5f4b0
Patch
https://github.com/pjsip/pjproject/security/advisories/GHSA-935m-fmf5-j4pm
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