VULNERABILITY INTELLIGENCE

CVE-2021-43413

CVSS score8.8 HIGH
EPSS probability1.97%
CISA KEVNot currently listed
Published2021-11-07
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

An issue was discovered in GNU Hurd before 0.9 20210404-9. A single pager port is shared among everyone who mmaps a file, allowing anyone to modify any files that they can read. This can be trivially exploited to get full root access.

Weakness classification

  • nvd@nist.gov: NVD-CWE-noinfo

Primary references