CVE-2021-20277

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

A flaw was found in Samba's libldb. Multiple, consecutive leading spaces in an LDAP attribute can lead to an out-of-bounds memory write, leading to a crash of the LDAP server process handling the request. The highest threat from this vulnerability is to system availability.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-125CWE-787

Affected software

VendorProductVersions
n/asambasamba 4.14.1, samba 4.13.6, samba 4.12.13

References

Timeline

Published
May 12, 2021
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2021-20277: High severity, CVSS 7.5 | Vulnix