Is CVE-2021-3928 in the CISA KEV catalog?

No. CVE-2021-3928 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-3928?

CVE-2021-3928 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2021-3928?

CVE-2021-3928 has an EPSS score of 0.59% (44th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-3928?

Upgrade vim on debian 12 to 2:8.2.3995-1 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2021-3928

HIGH

7.8

CVSS v3

NVD

Description

vim is vulnerable to Use of Uninitialized Variable

CWE-457 CWE-908

How to fix

Remediation Available

vimDebian

Fixed in:2:8.2.3995-1CVE-2021-3928

vimUbuntu

Fixed in:2:7.4.052-1ubuntu3.1+esm4USN-5147-1

Fixed in:2:7.4.1689-3ubuntu1.5+esm3USN-5147-1

Fixed in:2:8.0.1453-1ubuntu1.7USN-5147-1

Fixed in:2:8.1.2269-1ubuntu5.4USN-5147-1

VimWindows application

Affected:8.2.3582Fixed in:8.2.3582Bram Moolenaar et al.

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.59%probability of exploitation in 30 days

44thpercentile

Moderate risk: more likely to be exploited than 44% of all known CVEs.

References

Patch2

Mitigation1

lists.debian.org

Third-Party Advisory3

Other references3

Related Vulnerabilities

Other CWE-457 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-5777	High	7.5	100%	KEV + Ransom	Fix
CVE-2009-0901	High	8.8	37%	-	-
CVE-2021-40418	Critical	9.8	18%	-	-
CVE-2019-11038	Medium	5.3	4.3%	-	Fix
CVE-2021-31435	High	7.8	2.8%	-	-
CVE-2021-46570	High	7.8	2.1%	-	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.