Is CVE-2020-3123 in the CISA KEV catalog?

No. CVE-2020-3123 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-3123?

CVE-2020-3123 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2020-3123?

CVE-2020-3123 has an EPSS score of 2.60% (84th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-3123?

Upgrade clamav on debian 11 to 0.102.2+dfsg-1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2020-3123

HIGHEPSS 84th pctl

7.5

CVSS v3

NVD

Description

A vulnerability in the Data-Loss-Prevention (DLP) module in Clam AntiVirus (ClamAV) Software versions 0.102.1 and 0.102.0 could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to an out-of-bounds read affecting users that have enabled the optional DLP feature. An attacker could exploit this vulnerability by sending a crafted email file to an affected device. An exploit could allow the attacker to cause the ClamAV scanning process crash, resulting in a denial of service condition.

CWE-125Out-of-bounds Read

How to fix

Remediation Available

clamavDebian

Fixed in:0.102.2+dfsg-1CVE-2020-3123

clamavUbuntu

Fixed in:0.102.2+dfsg-0ubuntu0.14.04.1+esm1USN-4280-2

Fixed in:0.102.2+dfsg-0ubuntu0.16.04.1USN-4280-1

Fixed in:0.102.2+dfsg-0ubuntu0.18.04.1USN-4280-1

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 VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

2.60%probability of exploitation in 30 days

84thpercentile

Elevated risk: more likely to be exploited than 84% of all known CVEs.

References

Vendor Advisory1

blog.clamav.net

Third-Party Advisory4

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.