Critical severity · published Feb 11, 2026
CVE-2026-25994
PJSIP has a heap buffer overflow in ICE with long username
9.8
CVSS
2.1%
EPSS
No
On KEV
Description
PJSIP is a free and open source multimedia communication library written in C. In 2.16 and earlier, a buffer overflow vulnerability exists in PJNATH ICE Session when processing credentials with excessively long usernames.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.1% · higher than 81% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PJ
pjproject · pjsip
<= 2.16 · source: vendor
PJ
Pjsip · Pjsip
through 2.16 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-25994
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-25994
Patch
https://github.com/pjsip/pjproject/commit/063b3a155f163cc5a9a1df2c56b6720fd3a0dbb0
Patch
https://github.com/pjsip/pjproject/security/advisories/GHSA-j29p-pvh2-pvqp
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