Is CVE-2005-2643 in the CISA KEV catalog?

No. CVE-2005-2643 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2005-2643?

CVE-2005-2643 has a CVSS v2 base score of 5.0 (MEDIUM).

What is the EPSS score for CVE-2005-2643?

CVE-2005-2643 has an EPSS score of 1.25% (66th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2005-2643?

Upgrade tor on debian 11 to 0.1.0.14-1 or later.

CVE & CISA-KEV Catalog

CVE-2005-2643

MEDIUM

5.0

CVSS v2

NVD

Description

Tor 0.1.0.13 and earlier, and experimental versions 0.1.1.4-alpha and earlier, does not reject certain weak keys when using ephemeral Diffie-Hellman (DH) handshakes, which allows malicious Tor servers to obtain the keys that a client uses for other systems in the circuit.

How to fix

Remediation Available

torDebian

Fixed in:0.1.0.14-1CVE-2005-2643

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

1.25%probability of exploitation in 30 days

66thpercentile

Moderate risk: more likely to be exploited than 66% of all known CVEs.

References

Patch1

secunia.com

Vendor Advisory1

archives.seul.org

Other references2

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-16.