Is CVE-2018-20430 in the CISA KEV catalog?

No. CVE-2018-20430 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-20430?

CVE-2018-20430 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2018-20430?

CVE-2018-20430 has an EPSS score of 2.24% (81th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-20430?

Upgrade libextractor on debian 11 to 1:1.8-2 or later. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2018-20430

MEDIUMEPSS 81th pctl

6.5

CVSS v3

NVD

Description

GNU Libextractor through 1.8 has an out-of-bounds read vulnerability in the function history_extract() in plugins/ole2_extractor.c, related to EXTRACTOR_common_convert_to_utf8 in common/convert.c.

CWE-125Out-of-bounds Read

How to fix

Remediation Available

libextractorDebian

Fixed in:1:1.8-2CVE-2018-20430

extractUbuntu

Fixed in:1:1.3-4+deb9u3build0.16.04.1USN-4641-1

libextractorUbuntu

Fixed in:1:1.3-4+deb9u3build0.16.04.1USN-4641-1

libextractor-devUbuntu

Fixed in:1:1.3-4+deb9u3build0.16.04.1USN-4641-1

libextractor3Ubuntu

Fixed in:1:1.3-4+deb9u3build0.16.04.1USN-4641-1

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 InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Exploit Intelligence

2.24%probability of exploitation in 30 days

81stpercentile

Elevated risk: more likely to be exploited than 81% of all known CVEs.

References

Patch1

gnunet.org

Exploit1

gnunet.org

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.