Is CVE-2020-29129 in the CISA KEV catalog?

No. CVE-2020-29129 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-29129?

CVE-2020-29129 has a CVSS v3 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2020-29129?

CVE-2020-29129 has an EPSS score of 1.44% (70th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-29129?

Upgrade libslirp on debian 11 to 4.4.0-1 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2020-29129

MEDIUMEPSS 70th pctl

4.3

CVSS v3

NVD

Description

ncsi.c in libslirp through 4.3.1 has a buffer over-read because it tries to read a certain amount of header data even if that exceeds the total packet length.

CWE-125Out-of-bounds Read

How to fix

Remediation Available

libslirpDebian

Fixed in:4.4.0-1CVE-2020-29129

libslirpUbuntu

Fixed in:4.1.0-2ubuntu2.2USN-5009-1

libslirp0Ubuntu

Fixed in:4.1.0-2ubuntu2.2USN-5009-1

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 RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

1.44%probability of exploitation in 30 days

70thpercentile

Elevated risk: more likely to be exploited than 70% of all known CVEs.

References

Vendor Advisory1

lists.freedesktop.org

Third-Party Advisory2

Other references2

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.