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Case File

CVE-2013-4207

MEDIUM · CVSS 4.3 EPSS 1.83%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2013-08-19 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 4.3. It may be remotely exploitable. It may lead to a denial-of-service condition.

CVE
CVE-2013-4207
Severity
MEDIUM
CVSS
4.3
EPSS
1.83%

Original NVD Description

Buffer overflow in sshbn.c in PuTTY before 0.63 allows remote SSH servers to cause a denial of service (crash) via an invalid DSA signature that is not properly handled during computation of a modular inverse and triggers the overflow during a division by zero by the bignum functionality, a different vulnerability than CVE-2013-4206.