AUGUST 4, 2026
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Case File

CVE-2021-36386

HIGH · CVSS 7.5 EPSS 2.56%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-07-30 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. It may lead to a denial-of-service condition.

CVE
CVE-2021-36386
Severity
HIGH
CVSS
7.5
EPSS
2.56%

Original NVD Description

report_vbuild in report.c in Fetchmail before 6.4.20 sometimes omits initialization of the vsnprintf va_list argument, which might allow mail servers to cause a denial of service or possibly have unspecified other impact via long error messages. NOTE: it is unclear whether use of Fetchmail on any realistic platform results in an impact beyond an inconvenience to the client user.

Related CVEs

Other vulnerabilities affecting the same vendor(s)