CVE-2019-16928

exim: remotely triggerable buffer overflow in string_vformat()

Published Sep 27, 2019 CVSS 3.1 · 9.8 Critical EPSS 41.6% KEV · Listed
Description
Exim 4.92 through 4.92.2 allows remote code execution, a different vulnerability than CVE-2019-15846. There is a heap-based buffer overflow in string_vformat in string.c involving a long EHLO command.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DSA Debian DSA DSA-4536-1 exim4 security update
Ubuntu USN Ubuntu USN USN-4141-1 Exim vulnerability
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Oct 21, 2025, 11:45 PM
Reserved
Sep 27, 2019, 12:00 AM
Status
Analyzed
Published
Sep 27, 2019, 9:15 PM
Modified
Jun 17, 2026, 2:22 AM
Severity
Critical
Public date
Sep 27, 2019, 12:00 AM