CVE-2007-2293Asterisk Vulnerability
Multiple stack-based buffer overflows in the process_sdp function in chan_sip.c of the SIP channel T.38 SDP parser in Asterisk before 1.4.3 allow remote attackers to execute arbitrary code via a long (1) T38FaxRateManagement or (2) T38FaxUdpEC SDP parameter in an SIP message, as…
Published Apr 26, 2007 · Updated Aug 4, 2026 · Also known as DEBIAN-CVE-2007-2293
Key Facts
Patch immediately- CVE-2007-2293 is a high-severity vulnerability (CVSS 7.6 v2) affecting Asterisk.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 24% probability of exploitation in the next 30 days.
- Fixed versions are available, including Asterisk 1:1.4.3~dfsg-1.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Scores
CVSS v2
7.6
AV:N/AC:H/Au:N/C:C/I:C/A:C
EPSS (30-day exploit likelihood)
24%
Higher than 97.8% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
38/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Proof of concept
Public exploit code
2
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Advisories And Exploit References
- advisoryhttps://security-tracker.debian.org/tracker/CVE-2007-2293
- patch24977
- patch23648
- patch1017951
Description
Multiple stack-based buffer overflows in the process_sdp function in chan_sip.c of the SIP channel T.38 SDP parser in Asterisk before 1.4.3 allow remote attackers to execute arbitrary code via a long (1) T38FaxRateManagement or (2) T38FaxUdpEC SDP parameter in an SIP message, as demonstrated using SIP INVITE.
Affected Products
9 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| AsteriskAsterisk | 1.4.1, 1.4.2, 1.4_beta | 1:1.4.3~dfsg-1 |
Patched Releases
Asterisk
1:1.4.3~dfsg-1
Timeline
Publicly disclosed
Apr 26, 2007
Last updated
Aug 4, 2026
References
- advisorysecurity-tracker.debian.org · CVE-2007-2293
- patch24977
- patch23648
- patch1017951
- exploitExploitDB-29900
FAQ
Common Questions.
Multiple stack-based buffer overflows in the process_sdp function in chan_sip.c of the SIP channel T.38 SDP parser in Asterisk before 1.4.3 allow remote attackers to execute arbitrary code via a long (1) T38FaxRateManagement or (2) T38FaxUdpEC SDP parameter in an SIP message, as demonstrated using SIP INVITE.
Affected: Asterisk versions 1.4.1, 1.4.2, 1.4_beta. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Asterisk 1:1.4.3~dfsg-1.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Is CVE-2007-2293 On Your Attack Surface?
Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.
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