Is CVE-2021-45342 in the CISA KEV catalog?

No. CVE-2021-45342 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-45342?

CVE-2021-45342 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2021-45342?

CVE-2021-45342 has an EPSS score of 1.93% (78th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-45342?

Upgrade librecad on debian 11 to 2.1.3-1.3+deb11u1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2021-45342

HIGHEPSS 78th pctl

7.8

CVSS v3

NVD

Description

A buffer overflow vulnerability in CDataList of the jwwlib component of LibreCAD 2.2.0-rc3 and older allows an attacker to achieve Remote Code Execution using a crafted JWW document.

CWE-120Classic Buffer Overflow

How to fix

Remediation Available

librecadDebian

Fixed in:2.1.3-1.3+deb11u1CVE-2021-45342

Fixed in:2.1.3-3CVE-2021-45342

librecadUbuntu

Fixed in:2.0.9-2ubuntu0.1~esm1USN-5957-1

Fixed in:2.1.2-1ubuntu0.1~esm1USN-5957-1

Fixed in:2.1.3-1.2+deb10u1build0.20.04.1USN-5957-1

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

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

1.93%probability of exploitation in 30 days

78thpercentile

Elevated risk: more likely to be exploited than 78% of all known CVEs.

References

Exploit1

github.com

Third-Party Advisory1

debian.org

Other references3

Related Vulnerabilities

Other CWE-120 (Classic Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0195	Medium	6.8	100%	-	Fix
CVE-2017-7269	Critical	9.8	100%	KEV	-
CVE-2019-11043	High	8.7	99%	KEV + Ransom	Fix
CVE-2011-4862	High	10.0	95%	-	Fix
CVE-2007-5659	High	7.8	94%	KEV	Fix
CVE-2022-3786	High	7.5	91%	-	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.