CVEvulnerability

CVE-2019-16928

9.8 CRITICAL Known exploited Published 2019-09-27 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

Exim Out-of-bounds Write Vulnerability — Exim Exim Internet Mailer

Exim contains an out-of-bounds write vulnerability which can allow for remote code execution.

Added to KEV
2022-03-03
Remediation due
2022-03-17
Ransomware use
Unknown
Required action
Apply updates per vendor instructions.
Notes
https://nvd.nist.gov/vuln/detail/CVE-2019-16928
Status
Analyzed
Published
2019-09-27
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
Weaknesses
CWE-787

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.

Affected configurations

• exim exim (>= 4.92 <= 4.92.2) • canonical ubuntu linux 19.04 • debian debian linux 10.0 • fedoraproject fedora 29 • fedoraproject fedora 30 • fedoraproject fedora 31

Related

Weakness · CWE (1)

  • CWE-787 Out-of-bounds Write weakness

References