Is CVE-2021-4193 in the CISA KEV catalog?

No. CVE-2021-4193 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-4193?

CVE-2021-4193 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2021-4193?

CVE-2021-4193 has an EPSS score of 1.76% (75th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-4193?

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-2021-4193

MEDIUMEPSS 75th pctl

5.5

CVSS v3

NVD

Description

vim is vulnerable to Out-of-bounds Read

CWE-125Out-of-bounds Read

How to fix

Remediation Available

vimDebian

Fixed in:2:8.2.3995-1CVE-2021-4193

vimUbuntu

Fixed in:2:7.4.052-1ubuntu3.1+esm9USN-6026-1

Fixed in:2:7.4.1689-3ubuntu1.5+esm5USN-5458-1

Fixed in:2:8.0.1453-1ubuntu1.13USN-6026-1

Fixed in:2:8.1.2269-1ubuntu5.14USN-6026-1

Fixed in:2:8.2.3995-1ubuntu2.7USN-6026-1

VimWindows application

Affected:8.2.3950Fixed in:8.2.3950Bram Moolenaar et al.

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 RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

1.76%probability of exploitation in 30 days

75thpercentile

Elevated risk: more likely to be exploited than 75% of all known CVEs.

References

Patch2

Third-Party Advisory10

Other references1

lists.fedoraproject.org

Related Vulnerabilities

Other CWE-125 (Out-of-bounds Read) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0160	High	7.5	100%	KEV	Fix
CVE-2025-5777	High	7.5	100%	KEV + Ransom	Fix
CVE-2021-4034	High	7.8	95%	KEV	Fix
CVE-2023-21769	High	7.5	92%	-	Fix
CVE-2023-49285	High	8.6	89%	-	Fix
CVE-2020-8794	Critical	9.8	89%	-	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.