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Fencer Vulns
high 7.5

CVE-2003-1110 json

The Session Initiation Protocol (SIP) implementation in Columbia SIP User Agent (sipc) 1.74 and other versions before sipc 2.0 build 2003-0…

published 2003-12-31 22 y ago modified 2026-06-16 4 mo ago also EUVD-2003-1100

cvss
7.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.3%
EPSS 5.3% chance of exploitation in 30 days, percentile 92%
public exploits
0
none known

Summary

The Session Initiation Protocol (SIP) implementation in Columbia SIP User Agent (sipc) 1.74 and other versions before sipc 2.0 build 2003-02-21 allows remote attackers to cause a denial of service or execute arbitrary code via crafted INVITE messages, as demonstrated by the OUSPG PROTOS c07-sip test suite.

Patch / fix

Exploit prediction

5.31% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • ee.oulu.fi http://www.ee.oulu.fi/research/ouspg/protos/testing/c07/sip/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.