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Case File

CVE-2015-5309

MEDIUM · CVSS 4.3 EPSS 3.47%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2015-12-07 · 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-2015-5309
Severity
MEDIUM
CVSS
4.3
EPSS
3.47%

Original NVD Description

Integer overflow in the terminal emulator in PuTTY before 0.66 allows remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code via an ECH (erase characters) escape sequence with a large parameter value, which triggers a buffer underflow.