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CVE-2011-4063
chan_sip.c in the SIP channel driver in Asterisk Open Source 1.8.x before 1.8.7.1 and 10.x before 10.0.0-rc1 does not properly initialize…
Medium6.8EPSS 2.4%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
chan_sip.c in the SIP channel driver in Asterisk Open Source 1.8.x before 1.8.7.1 and 10.x before 10.0.0-rc1 does not properly initialize variables during request parsing, which allows remote authenticated users to cause a denial of service (daemon crash) via a malformed request.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium6.8 | AV:N/AC:L/Au:S/C:N/I:N/A:C |
- EPSS (exploitation in 30 days)
- 2.4% · top 16% of all CVEs (2 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.8.
Weakness
Affected products
n/a
- affected n/a
References (7)
- 1026191 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 8478 (opens in a new tab)third-party-advisoryx_refsource_SREASONx_transferred
- 46420 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 20111017 AST-2011-012: Remote crash vulnerability in SIP channel driver (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 50177 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- asterisk-sip-channel-driver-dos(70706) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- http://downloads.digium.com/pub/security/AST-2011-012.html (opens in a new tab)x_refsource_CONFIRMx_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)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Record last updated .