CVE-2003-0255

CVE-2003-0255 is a critical-severity vulnerability in Gnu Privacy Guard 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

Description

The key validation code in GnuPG before 1.2.2 does not properly determine the validity of keys with multiple user IDs and assigns the greatest validity of the most valid user ID, which prevents GnuPG from warning the encrypting user when a user ID does not have a trusted path.

Frequently asked questions

What is CVE-2003-0255?
The key validation code in GnuPG before 1.2.2 does not properly determine the validity of keys with multiple user IDs and assigns the greatest validity of the most valid user ID, which prevents GnuPG from warning the encrypting user when a user ID does not have a trusted path.
How severe is CVE-2003-0255?
CVE-2003-0255 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2003-0255 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2003-0255?
CVE-2003-0255 affects Gnu Privacy Guard. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2003-0255?
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-2003-0255 published?
CVE-2003-0255 was published on 2003-05-27 and last updated on 2026-06-16.

References

Affected products (1)

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