CVE-2020-8991

vg_lookup in daemons/lvmetad/lvmetad-core.c in LVM2 2.02 mismanages memory, leading to an lvmetad...

2.3 LowFix availableDisputed

vg_lookup in daemons/lvmetad/lvmetad-core.c in LVM2 2.02 mismanages memory, leading to an lvmetad memory leak, as demonstrated by running pvs. NOTE: RedHat disputes CVE-2020-8991 as not being a vulnerability since there’s no apparent route to either privilege escalation or to denial of service through the bug

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: High
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: Low

Exploit likelihood

0.33%Down 0.2 points since Apr 14, 2021

What each source reports

NVD Score used 2.3

Record: CVE-2020-8991
CVSS 3.1: 2.3 LowCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
CVSS 2.0: 2.1 LowAV:L/AC:L/Au:N/C:N/I:N/A:P
Weakness: CWE-401
Updated: 2026-11-02

CVE List No score

Record: CVE-2020-8991
Updated: 2026-11-02

EUVDEUVD-2020-29821 No score

Record: EUVD-2020-29821
Updated: 2026-11-03

GitHub AdvisoriesGHSA-qhfv-hfvw-jqhq 2.3

vg_lookup in daemons/lvmetad/lvmetad-core.c in LVM2 2.02 mismanages memory, leading to an lvmetad...

vg_lookup in daemons/lvmetad/lvmetad-core.c in LVM2 2.02 mismanages memory, leading to an lvmetad memory leak, as demonstrated by running pvs.

Record: GHSA-qhfv-hfvw-jqhq
CVSS 3.1: 2.3 LowCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
Weakness: CWE-401, CWE-772
Updated: 2026-11-02

OSVBELL-CVE-2020-8991 2.3

CVE-2020-8991 does not affect BellSoft software

Record: BELL-CVE-2020-8991
CVSS 3.1: 2.3 LowCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
Updated: 2026-11-02

OSV 2.3

Record: CVE-2020-8991
CVSS 3.1: 2.3 LowCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
Updated: 2026-11-02

OSVDEBIAN-CVE-2020-8991 2.3

Record: DEBIAN-CVE-2020-8991
CVSS 3.1: 2.3 LowCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
Updated: 2026-11-02

Affected products

redhat lvm2

Affected packages

Affected packages
Package	Affected	Fixed
`lvm2` Debian:12	before 2.03.01-2	2.03.01-2
`lvm2` Debian:13	before 2.03.01-2	2.03.01-2
`lvm2` Debian:14	before 2.03.01-2	2.03.01-2

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-8991 is a low vulnerability (CVSS 2.3) in Redhat Lvm2, published February 14, 2020. Its validity is disputed. EPSS puts the chance of exploitation in the next 30 days at 0.33%, the 26th percentile. Fixed in lvm2 2.03.01-2.