CVE-2010-1156

CVE-2010-1156 is a medium-severity vulnerability in Irssi with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

core/nicklist.c in Irssi before 0.8.15 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via vectors related to an attempted fuzzy nick match at the instant that a victim leaves a channel.

Frequently asked questions

What is CVE-2010-1156?
core/nicklist.c in Irssi before 0.8.15 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via vectors related to an attempted fuzzy nick match at the instant that a victim leaves a channel.
How severe is CVE-2010-1156?
CVE-2010-1156 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2010-1156 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-1156?
CVE-2010-1156 primarily affects Irssi. In total, 24 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2010-1156?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2010-1156 published?
CVE-2010-1156 was published on 2010-04-16 and last updated on 2026-06-16.

References

Affected products (24)

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