Is CVE-2023-29479 in the CISA KEV catalog?

No. CVE-2023-29479 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-29479?

CVE-2023-29479 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2023-29479?

CVE-2023-29479 has an EPSS score of 0.90% (55th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-29479?

Upgrade rnp on debian 12 to 0.16.3-1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2023-29479

MEDIUM

5.3

CVSS v3

NVD

Description

Ribose RNP before 0.16.3 may hang when the input is malformed.

CWE-400Resource Exhaustion CWE-770Allocation of Resources Without Limits or Throttling

How to fix

Remediation Available

rnpDebian

Fixed in:0.16.3-1CVE-2023-29479

thunderbirdUbuntu

Fixed in:1:102.10.0+build2-0ubuntu0.18.04.1USN-6015-1

Fixed in:1:102.10.0+build2-0ubuntu0.20.04.1USN-6015-1

Fixed in:1:102.10.0+build2-0ubuntu0.22.04.1USN-6015-1

Fixed in:1:102.10.0+build2-0ubuntu0.22.10.1USN-6015-1

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

AvailabilityLow

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

Exploit Intelligence

0.90%probability of exploitation in 30 days

55thpercentile

Moderate risk: more likely to be exploited than 55% of all known CVEs.

References

Vendor Advisory1

cve.ribose.com

Release Notes1

rnpgp.org

Other references1

open.ribose.com

Related Vulnerabilities

Other CWE-400 (Resource Exhaustion) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-44487	High	7.5	100%	KEV	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2011-3192	High	7.8	99%	-	Fix
CVE-2019-11478	Medium	5.3	95%	-	Fix
CVE-2024-25617	Medium	5.3	89%	-	Fix
CVE-2018-1000115	High	7.5	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 2025-11-21.