Is CVE-2025-2173 in the CISA KEV catalog?

No. CVE-2025-2173 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-2173?

CVE-2025-2173 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2025-2173?

CVE-2025-2173 has an EPSS score of 0.56% (43th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-2173?

Upgrade zvbi on debian 11 to 0.2.35-18+deb11u1 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2025-2173

MEDIUM

5.3

CVSS v3

NVD

Description

A vulnerability was found in libzvbi up to 0.2.43. It has been classified as problematic. Affected is the function vbi_strndup_iconv_ucs2 of the file src/conv.c. The manipulation of the argument src_length leads to uninitialized pointer. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 0.2.44 is able to address this issue. The patch is identified as 8def647eea27f7fd7ad33ff79c2d6d3e39948dce. It is recommended to upgrade the affected component. The code maintainer was informed beforehand about the issues. She reacted very fast and highly professional.

CWE-824 CWE-908

How to fix

Remediation Available

zvbiDebian

Fixed in:0.2.35-18+deb11u1CVE-2025-2173

Fixed in:0.2.41-1+deb12u1CVE-2025-2173

Fixed in:0.2.44-1CVE-2025-2173

libzvbi0Ubuntu

Fixed in:0.2.35-10ubuntu0.1~esm1USN-7367-1

Fixed in:0.2.35-13ubuntu0.1~esm1USN-7367-1

Fixed in:0.2.35-17ubuntu0.1~esm1USN-7367-1

Fixed in:0.2.35-19ubuntu0.1~esm1USN-7367-1

libzvbi0t64Ubuntu

Fixed in:0.2.42-2ubuntu0.24.04.1~esm1USN-7367-1

zvbiUbuntu

Fixed in:0.2.35-10ubuntu0.1~esm1USN-7367-1

Fixed in:0.2.35-13ubuntu0.1~esm1USN-7367-1

Fixed in:0.2.35-17ubuntu0.1~esm1USN-7367-1

Fixed in:0.2.35-19ubuntu0.1~esm1USN-7367-1

Fixed in:0.2.42-2ubuntu0.24.04.1~esm1USN-7367-1

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

ConfidentialityLow

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

0.56%probability of exploitation in 30 days

43rdpercentile

Moderate risk: more likely to be exploited than 43% of all known CVEs.

References

Patch2

Third-Party Advisory2

Release Notes1

github.com

VDB Entry1

vuldb.com

Related Vulnerabilities

Other CWE-824 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2018-9948	Medium	6.5	64%	-	-
CVE-2018-11803	High	7.5	58%	-	Fix
CVE-2022-21971	High	7.8	54%	KEV	Fix
CVE-2010-1818	High	9.3	43%	-	-
CVE-2015-1770	High	8.8	35%	KEV	-
CVE-2017-12561	Critical	9.8	31%	-	-

Embed a live status badge for CVE-2025-2173

Markdown

[![CVE-2025-2173](https://tridentstack.com/cve/badge/CVE-2025-2173.svg)](https://tridentstack.com/cve/CVE-2025-2173)

HTML

<a href="https://tridentstack.com/cve/CVE-2025-2173"><img src="https://tridentstack.com/cve/badge/CVE-2025-2173.svg" alt="CVE-2025-2173"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

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 2025-10-03.