Is CVE-2020-29363 in the CISA KEV catalog?

No. CVE-2020-29363 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-29363?

CVE-2020-29363 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2020-29363?

CVE-2020-29363 has an EPSS score of 3.52% (88th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-29363?

Upgrade p11-kit on debian 11 to 0.23.22-1 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2020-29363

HIGHEPSS 88th pctl

7.5

CVSS v3

NVD

Description

An issue was discovered in p11-kit 0.23.6 through 0.23.21. A heap-based buffer overflow has been discovered in the RPC protocol used by p11-kit server/remote commands and the client library. When the remote entity supplies a serialized byte array in a CK_ATTRIBUTE, the receiving entity may not allocate sufficient length for the buffer to store the deserialized value.

CWE-787Out-of-bounds Write

How to fix

Remediation Available

p11-kitDebian

Fixed in:0.23.22-1CVE-2020-29363

libp11-kit0Ubuntu

Fixed in:0.23.2-5~ubuntu16.04.2USN-4677-1

Fixed in:0.23.9-2ubuntu0.1USN-4677-1

Fixed in:0.23.20-1ubuntu0.1USN-4677-1

p11-kitUbuntu

Fixed in:0.23.2-5~ubuntu16.04.2USN-4677-1

Fixed in:0.23.9-2ubuntu0.1USN-4677-1

Fixed in:0.23.20-1ubuntu0.1USN-4677-1

p11-kit-modulesUbuntu

Fixed in:0.23.2-5~ubuntu16.04.2USN-4677-1

Fixed in:0.23.9-2ubuntu0.1USN-4677-1

Fixed in:0.23.20-1ubuntu0.1USN-4677-1

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

3.52%probability of exploitation in 30 days

88thpercentile

Elevated risk: more likely to be exploited than 88% of all known CVEs.

References

Patch1

oracle.com

Third-Party Advisory3

Related Vulnerabilities

Other CWE-787 (Out-of-bounds Write) 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-2015-3113	Critical	9.8	100%	KEV	Fix
CVE-2021-20038	Critical	9.8	100%	KEV + Ransom	-
CVE-2023-4863	High	8.8	100%	KEV	Fix
CVE-2020-16040	Medium	6.5	100%	-	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.