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Case File

CVE-2021-35525

MEDIUM · CVSS 5.3 EPSS 1.62% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-06-28 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 5.3. Public exploit code or proof-of-concept references have been detected in its references. It may lead to a denial-of-service condition.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2021-35525
Severity
MEDIUM
CVSS
5.3
EPSS
1.62%

Original NVD Description

PostSRSd before 1.11 allows a denial of service (subprocess hang) if Postfix sends certain long data fields such as multiple concatenated email addresses. NOTE: the PostSRSd maintainer acknowledges "theoretically, this error should never occur ... I'm not sure if there's a reliable way to trigger this condition by an external attacker, but it is a security bug in PostSRSd nevertheless."

Related CVEs

Other vulnerabilities affecting the same vendor(s)