How severe is CVE-2003-0761?

CVE-2003-0761 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2003-0761 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2003-0761?

CVE-2003-0761 affects Digium Asterisk. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2003-0761?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2003-0761 published?

CVE-2003-0761 was published on 2003-09-17 and last updated on 2026-06-16.

CVE-2003-0761

CVE-2003-0761 is a high-severity vulnerability in Digium Asterisk with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 4% (89th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Digium Asterisk
Published: 2003-09-17
Last modified: 2026-06-16

Description

Buffer overflow in the get_msg_text of chan_sip.c in the Session Initiation Protocol (SIP) protocol implementation for Asterisk releases before August 15, 2003, allows remote attackers to execute arbitrary code via certain (1) MESSAGE or (2) INFO requests.

Frequently asked questions

What is CVE-2003-0761?: Buffer overflow in the get_msg_text of chan_sip.c in the Session Initiation Protocol (SIP) protocol implementation for Asterisk releases before August 15, 2003, allows remote attackers to execute arbitrary code via certain (1) MESSAGE or (2) INFO requests.
How severe is CVE-2003-0761?: CVE-2003-0761 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2003-0761 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2003-0761?: CVE-2003-0761 affects Digium Asterisk. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2003-0761?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2003-0761 published?: CVE-2003-0761 was published on 2003-09-17 and last updated on 2026-06-16.

References

http://www.atstake.com/research/advisories/2003/a090403-1.txt

Affected products (1)

cpe:2.3:a:digium:asterisk:1.2.13:*:*:*:*:*:*:*

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