CVE-2026-41415— PJSIP: SIP Multipart CID URI Length Underflow
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及之前版本存在缓冲区错误漏洞，该漏洞源于解析SIP多部分消息体中Content-ID URI时越界读取。
Possible ATT&CK Techniques 1 AI
T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2026-41415
Vulnerability Information
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Vulnerability Title
PJSIP: SIP Multipart CID URI Length Underflow
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:U
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
PJSIP 缓冲区错误漏洞
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及之前版本存在缓冲区错误漏洞，该漏洞源于解析SIP多部分消息体中Content-ID URI时越界读取。
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-2026-41415
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2026-41415 (1)
Vendor Advisories for CVE-2026-41415 (1)
-
🔗 SIP Multipart CID URI Length Underflow · Advisory · pjsip/pjproject · GitHub x_refsource_CONFIRM
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-125
-
CVE-2026-107837
RIOT: Out-of-Bounds Read in RIOT OS 6LoWPAN SFF Fragment Han -
CVE-2026-107836
RIOT: nanoCoAP Block2 client slice handling underflows on in -
CVE-2026-107817
MariaDB: mysql_json plugin OOB reads -
CVE-2026-107816
MariaDB: `qc_info` plugin can do OOB reads if query contains -
CVE-2026-108103
Open5GS through 2.8.0 Heap Out-of-Bounds Read via PFCP Dropp
V. Comments for CVE-2026-41415
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