VULNERABILITY INTELLIGENCE

CVE-2020-27840

CVSS score7.5 HIGH
EPSS probability3.83%
CISA KEVNot currently listed
Published2021-05-12
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

A flaw was found in samba. Spaces used in a string around a domain name (DN), while supposed to be ignored, can cause invalid DN strings with spaces to instead write a zero-byte into out-of-bounds memory, resulting in a crash. The highest threat from this vulnerability is to system availability.

Weakness classification

  • secalert@redhat.com: CWE-125

Primary references