How severe is CVE-2002-1840?

CVE-2002-1840 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2002-1840 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-2002-1840?

CVE-2002-1840 affects Irssi. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2002-1840?

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

When was CVE-2002-1840 published?

CVE-2002-1840 was published on 2002-12-31 and last updated on 2026-06-16.

CVE-2002-1840

CVE-2002-1840 is a critical-severity vulnerability in Irssi with a CVSS 2.0 base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Irssi
Published: 2002-12-31
Last modified: 2026-06-16

Description

irssi IRC client 0.8.4, when downloaded after 14-March-2002, could contain a backdoor in the configuration file, which allows remote attackers to access the system.

Frequently asked questions

What is CVE-2002-1840?: irssi IRC client 0.8.4, when downloaded after 14-March-2002, could contain a backdoor in the configuration file, which allows remote attackers to access the system.
How severe is CVE-2002-1840?: CVE-2002-1840 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2002-1840 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-2002-1840?: CVE-2002-1840 affects Irssi. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2002-1840?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2002-1840 published?: CVE-2002-1840 was published on 2002-12-31 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:irssi:irssi:0.8.4:*:*:*:*:*:*:*

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