Is CVE-2021-3982 in the CISA KEV catalog?

No. CVE-2021-3982 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-3982?

CVE-2021-3982 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2021-3982?

CVE-2021-3982 has an EPSS score of 0.29% (21th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2021-3982?

No published fix for CVE-2021-3982 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2021-3982

MEDIUM

5.5

CVSS v3

NVD

Description

Linux distributions using CAP_SYS_NICE for gnome-shell may be exposed to a privilege escalation issue. An attacker, with low privilege permissions, may take advantage of the way CAP_SYS_NICE is currently implemented and eventually load code to increase its process scheduler priority leading to possible DoS of other services running in the same machine.

CWE-273

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.29%probability of exploitation in 30 days

21stpercentile

Low risk: more likely to be exploited than 21% of all known CVEs.

References

Patch2

Related Vulnerabilities

Other CWE-273 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2011-2921	Critical	9.8	83%	-	-
CVE-2024-38813	High	7.5	17%	KEV	Fix
CVE-2017-6972	Critical	9.8	15%	-	-
CVE-2015-0278	High	10.0	3.2%	-	Fix
CVE-2019-18276	High	7.8	2.6%	-	Fix
CVE-2021-36372	Critical	9.8	2.4%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.