CVE-2007-1503

CVE-2007-1503 is a high-severity vulnerability in Rhapsody Irc 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

Description

Multiple format string vulnerabilities in comm.c in Rhapsody IRC 0.28b allow remote attackers to execute arbitrary code via format string specifiers to the create_ctcp_message function using the message argument to the (1) me or (2) ctcp commands, and possibly related vectors involving the (3) whois, (4) mode, and (5) topic commands.

Frequently asked questions

What is CVE-2007-1503?
Multiple format string vulnerabilities in comm.c in Rhapsody IRC 0.28b allow remote attackers to execute arbitrary code via format string specifiers to the create_ctcp_message function using the message argument to the (1) me or (2) ctcp commands, and possibly related vectors involving the (3) whois, (4) mode, and (5) topic commands.
How severe is CVE-2007-1503?
CVE-2007-1503 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2007-1503 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-1503?
CVE-2007-1503 affects Rhapsody Irc. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2007-1503?
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-2007-1503 published?
CVE-2007-1503 was published on 2007-03-19 and last updated on 2026-06-16.

References

Affected products (1)

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