Is CVE-2020-14393 in the CISA KEV catalog?

No. CVE-2020-14393 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-14393?

CVE-2020-14393 has a CVSS v3 base score of 7.1 (HIGH).

What is the EPSS score for CVE-2020-14393?

CVE-2020-14393 has an EPSS score of 0.60% (44th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-14393?

Upgrade libdbi-perl on debian 11 to 1.643-1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2020-14393

HIGH

7.1

CVSS v3

NVD

Description

A buffer overflow was found in perl-DBI < 1.643 in DBI.xs. A local attacker who is able to supply a string longer than 300 characters could cause an out-of-bounds write, affecting the availability of the service or integrity of data.

CWE-121Stack-based Buffer Overflow CWE-787Out-of-bounds Write

How to fix

Remediation Available

libdbi-perlDebian

Fixed in:1.643-1CVE-2020-14393

libdbi-perlUbuntu

Fixed in:1.634-1ubuntu0.2+esm1USN-5030-2

Fixed in:1.640-1ubuntu0.3USN-5030-1

Fixed in:1.643-1ubuntu0.1USN-5030-1

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 RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.60%probability of exploitation in 30 days

44thpercentile

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

References

Patch1

bugzilla.redhat.com

Third-Party Advisory3

Other references2

Related Vulnerabilities

Other CWE-121 (Stack-based Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-22457	Critical	9.0	100%	KEV + Ransom	Fix
CVE-2025-0282	Critical	9.0	100%	KEV + Ransom	-
CVE-2021-20038	Critical	9.8	100%	KEV + Ransom	-
CVE-2009-0927	High	8.8	97%	KEV	Fix
CVE-2020-10924	High	8.8	87%	-	-
CVE-2022-20705	Critical	10.0	80%	-	-

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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.