CVE-2003-1109
The Session Initiation Protocol (SIP) implementation in multiple Cisco products including IP Phone models 7940 and 7960, IOS versions in…
- 7.5HighCVSS base score
- 6.8%Exploitation in 30 daysEPSS · top 6.0% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
The Session Initiation Protocol (SIP) implementation in multiple Cisco products including IP Phone models 7940 and 7960, IOS versions in the 12.2 train, and Secure PIX 5.2.9 to 6.2.2 allows remote attackers to cause a denial of service and possibly execute arbitrary code via crafted INVITE messages, as demonstrated by the OUSPG PROTOS c07-sip test suite.
Timeline
ID reserved
By mitre
Published
- 19 years later
· 19 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 6.8% · top 6.0% of all CVEs (9 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
n/a
- affected n/a
References
9
- http://www.ee.oulu.fi/research/ouspg/protos/testing/c07/sip/ (opens in a new tab)x_refsource_MISCx_transferred
- 1006145 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 20030221 Multiple Product Vulnerabilities Found by PROTOS SIP Test Suite (opens in a new tab)vendor-advisoryx_refsource_CISCOx_transferred
- 1006144 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- VU#528719 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
- CA-2003-06 (opens in a new tab)third-party-advisoryx_refsource_CERTx_transferred
- 6904 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- sip-invite(11379) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 1006143 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2003-1099 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2003-1109)Record last updated .