CVE-2005-1600

CVE-2005-1600 is a high-severity vulnerability in Libtomcrypt 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

A "mathematical flaw" in the implementation of the El Gamal signature algorithm for LibTomCrypt 1.0 to 1.0.2 allows attackers to generate valid signatures without having the private key.

Frequently asked questions

What is CVE-2005-1600?
A "mathematical flaw" in the implementation of the El Gamal signature algorithm for LibTomCrypt 1.0 to 1.0.2 allows attackers to generate valid signatures without having the private key.
How severe is CVE-2005-1600?
CVE-2005-1600 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2005-1600 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2005-1600?
CVE-2005-1600 primarily affects Libtomcrypt. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2005-1600?
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-2005-1600 published?
CVE-2005-1600 was published on 2005-05-16 and last updated on 2026-06-16.

References

Affected products (3)