CVE-2026-90778— SIPp through 3.7.7 Buffer Overflow via SIP To Header Tag
Quick assessment
Affected
SIPp sipp
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.
SIPp 版本 3.7.7 及更早版本中存在一个缓冲区溢出漏洞，该漏洞位于 函数中，发生在处理包含 2049 字节或更长 tag 参数的 SIP To 头时。经过身份验证的远程攻击者可以发送带有超大 tag 参数的构造 SIP 消息，从而溢出静态缓冲区，导致进程崩溃。
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I. Basic Information for CVE-2026-90778
Vulnerability Information
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Vulnerability Title
SIPp through 3.7.7 Buffer Overflow via SIP To Header Tag
Source: CVE Program / CVE List V5
Vulnerability Description
SIPp through 3.7.7 contains a buffer overflow vulnerability in get_peer_tag() function when processing SIP To headers with tag parameters of 2049 bytes or more. Unauthenticated remote attackers can send crafted SIP messages with oversized tag parameters to overflow the static buffer and crash the process.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-90778
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-90778 (5)
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https://github.com/SIPp/sipp product
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https://github.com/SIPp/sipp/blob/v3.7.7/src/sip_parser.cpp#L76-L113 technical-description
Same Patch Batch · SIPp · 2026-09-13 · 3 CVEs total
| CVE-2026-90780 | 7.5 HIGH | SIPp through 3.7.7 Buffer Overflow via Oversized SIP Header Content |
| CVE-2026-90779 | 7.5 HIGH | SIPp through 3.7.7 Stack Buffer Overflow via createAuthHeader Algorithm Parameter |
IV. Related Vulnerabilities
Same product: sipp
Same vendor: SIPp
Same weakness: CWE-120
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V. Comments for CVE-2026-90778
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