Is CVE-2020-23903 in the CISA KEV catalog?

No. CVE-2020-23903 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-23903?

CVE-2020-23903 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2020-23903?

CVE-2020-23903 has an EPSS score of 0.94% (57th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-23903?

Upgrade speex on debian 12 to 1.2~rc1.2-2 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2020-23903

MEDIUM

5.5

CVSS v3

NVD

Description

A Divide by Zero vulnerability in the function static int read_samples of Speex v1.2 allows attackers to cause a denial of service (DoS) via a crafted WAV file.

CWE-369

How to fix

Remediation Available

speexDebian

Fixed in:1.2~rc1.2-2CVE-2020-23903

speexUbuntu

Fixed in:1.2~rc1.2-1ubuntu1+esm1USN-5280-1

Fixed in:1.2~rc1.2-1ubuntu2.1USN-5280-1

Fixed in:1.2~rc1.2-1.1ubuntu1.20.04.1USN-5280-1

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

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.94%probability of exploitation in 30 days

57thpercentile

Moderate risk: more likely to be exploited than 57% of all known CVEs.

References

Patch1

github.com

Other references2

Related Vulnerabilities

Other CWE-369 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2012-0207	High	7.5	20%	-	Fix
CVE-2017-8537	Medium	5.5	17%	-	-
CVE-2017-8536	Medium	5.5	17%	-	-
CVE-2017-8535	Medium	5.5	17%	-	-
CVE-2007-2237	Medium	5.5	15%	-	-
CVE-2025-0317	High	7.5	13%	-	-

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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.