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CVE-2003-0761

20
FAUCET Score

CVE-2003-0761 describes a buffer overflow vulnerability in the Session Initiation Protocol (SIP) implementation of Asterisk releases prior to August 15, 2003, specifically within the get_msg_text function of chan_sip.c. This flaw allows unauthenticated remote attackers to execute arbitrary code by sending specially crafted MESSAGE or INFO requests. With a CVSS score of 7.5, this vulnerability is considered high severity due to its network-based attack vector, low attack complexity, and potential for complete compromise of confidentiality, integrity, and availability. While no active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion has been observed, organizations using affected Asterisk versions should apply available patches.

Impacted Technologies

VendorProductVersion(s)CPE
1.2.13CPE matchmatch criteria
cpe:2.3:a:digium:asterisk:1.2.13:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.99%
Probability of exploitation in next 30 days
EPSS Percentile
89.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0399 is in the 81st percentile among its peer group of 51,466 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

atstake.com / research/advisories/2003/a090403-1.txt
ExploitVendor Advisory