CVE-2018-25356
HighCVSS 8.4Exploitation Probability (EPSS)
Low risk5th percentile - higher than 5% of all known CVEs
Summary
SIPp 3.6 and earlier has a local buffer overflow vulnerability in command-line argument handling. Attackers can supply oversized input to the -3pcc, -i, or -log_file parameters, causing strcpy to write beyond buffer boundaries in sipp.cpp, potentially leading to arbitrary code execution.
Risk Assessment
A local attacker can crash the application or execute arbitrary code, potentially leading to privilege escalation or system instability.
Recommendation
Update SIPp to version 3.7 or later, which includes the buffer overflow fix.
Other vulnerabilities in SIPp
See all- CVE-2026-90780High
SIPp through 3.7.7 contains a buffer overflow in the get_header() function in src/sip_parser.cpp when processing SIP messages with headers exceeding 20,490 bytes. Unauthenticated remote attackers can send crafted SIP messages with oversized headers to overflow the static buffer and crash the process.
- CVE-2026-90779High
SIPp through 3.7.7 contains a stack buffer overflow in createAuthHeader() when processing SIP authentication challenges with oversized algorithm parameters. A malicious SIP server can send a crafted 401 or 407 challenge to corrupt the stack and crash the client process.
- CVE-2026-90778High
SIPp through 3.7.7 contains a buffer overflow in get_peer_tag() 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.
Original NVD description (English source)
SIPp 3.6 and earlier contains a local buffer overflow vulnerability in command-line argument handling that allows local attackers to crash the application or execute arbitrary code. Attackers can trigger the vulnerability by supplying oversized input to the -3pcc, -i, or -log_file parameters, causing strcpy to write beyond buffer boundaries in sipp.cpp.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS