CVE-2009-4652

CVE-2009-4652 is a low-severity vulnerability in Ngircd with a CVSS 2.0 base score of 2.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

The (1) Conn_GetCipherInfo and (2) Conn_UsesSSL functions in src/ngircd/conn.c in ngIRCd 13 and 14, when SSL/TLS support is present and standalone mode is disabled, allow remote attackers to cause a denial of service (application crash) by sending the MOTD command from another server in the same IRC network, possibly related to an array index error.

Frequently asked questions

What is CVE-2009-4652?
The (1) Conn_GetCipherInfo and (2) Conn_UsesSSL functions in src/ngircd/conn.c in ngIRCd 13 and 14, when SSL/TLS support is present and standalone mode is disabled, allow remote attackers to cause a denial of service (application crash) by sending the MOTD command from another server in the same IRC network, possibly related to an array index error.
How severe is CVE-2009-4652?
CVE-2009-4652 has a CVSS 2.0 base score of 2.6, rated low severity.
Is CVE-2009-4652 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-4652?
CVE-2009-4652 primarily affects Ngircd. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-4652?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-4652 published?
CVE-2009-4652 was published on 2010-02-26 and last updated on 2026-06-16.

References

Affected products (2)

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