CVE-2026-32942— PJSIP has ICE session use-after-free race conditions
Quick assessment
Affected
pjsip pjproject
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
PJSIP是pjsip开源的一个免费和开源的多媒体通信库，用C语言编写，实现基于标准的协议，如SIP, SDP, RTP, STUN, TURN，和ICE。 PJSIP 2.16及之前版本存在资源管理错误漏洞，该漏洞源于ICE会话在会话销毁和回调之间存在竞争条件，可能导致堆释放后重用。
Possible ATT&CK Techniques 1 AI
T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2026-32942
Vulnerability Information
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Vulnerability Title
PJSIP has ICE session use-after-free race conditions
Source: CVE Program / CVE List V5
Vulnerability Description
PJSIP is a free and open source multimedia communication library written in C. Versions 2.16 and below contain a heap use-after-free vulnerability in the ICE session that occurs when there are race conditions between session destruction and the callbacks. This issue has been fixed in version 2.17.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5
Vulnerability Title
PJSIP 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PJSIP是pjsip开源的一个免费和开源的多媒体通信库，用C语言编写，实现基于标准的协议，如SIP, SDP, RTP, STUN, TURN，和ICE。 PJSIP 2.16及之前版本存在资源管理错误漏洞，该漏洞源于ICE会话在会话销毁和回调之间存在竞争条件，可能导致堆释放后重用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-32942
| # | POC Description | Source Link | Shenlong Link |
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Patches & Fixes for CVE-2026-32942 (1)
-
Merge commit from fork · pjsip/pjproject@c9caced · GitHub x_refsource_MISC
Vendor Advisories for CVE-2026-32942 (1)
-
ICE session use-after-free race conditions · Advisory · pjsip/pjproject · GitHub x_refsource_CONFIRM
Other References for CVE-2026-32942 (1)
Same Patch Batch · pjsip · 2026-03-20 · 3 CVEs total
| CVE-2026-32945 | PJSIP is vulnerable to Heap-based Buffer Overflow through DNS parser | |
| CVE-2026-33069 | PJSIP has an Out-of-bounds Read in SIP multipart parsing |
IV. Related Vulnerabilities
Same product: pjproject
-
CVE-2026-84975
PJSIP: TLS server identity (hostname) verification bypass vi -
CVE-2026-77396
PJSIP: Heap buffer overflow in the AVI parser -
CVE-2026-57166
PJSIP: Pre-authentication overflow in the telnet CLI error -
CVE-2026-57165
PJSIP: Pre-authentication overflow in the telnet CLI history -
CVE-2026-57164
PJSIP: Heap overflow in the HTTP client
Same vendor: pjsip
-
CVE-2026-84975
PJSIP: TLS server identity (hostname) verification bypass vi -
CVE-2026-77396
PJSIP: Heap buffer overflow in the AVI parser -
CVE-2026-57166
PJSIP: Pre-authentication overflow in the telnet CLI error -
CVE-2026-57165
PJSIP: Pre-authentication overflow in the telnet CLI history -
CVE-2026-57164
PJSIP: Heap overflow in the HTTP client
Same weakness: CWE-416
-
CVE-2026-105824
ImageMagick before 7.1.2-30 Use-After-Free in RSVG Decoder W -
CVE-2026-14508
IBM DataPower Gateway Use After Free -
CVE-2026-107167
M17n-lib: heap use-after-free write in re_init_ic() -
CVE-2026-107183
llama.cpp before b11393 Use-After-Free via common_chat_peg_m -
CVE-2026-106234
Chrome 155.0.8059.39前扩展Use After Free漏洞
V. Comments for CVE-2026-32942
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