CVE-2025-2176: A vulnerability classified as critical has been found in libzvbi up to 0.2.43

Q: How do I fix CVE-2025-2176?

zvbi: upgrade to 0.2.44. Exact commands for each OS are on this page.

Q: Is CVE-2025-2176 being exploited?

CVE-2025-2176 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-2176 affect?

CVE-2025-2176 affects zvbi. Severity is high (CVSS 7.3). A vulnerability classified as critical has been found in libzvbi up to 0.2.43. This affects the function vbi_capture_sim_load_caption of the file src/io-sim.c. The manipulation leads to integer overflow. It is possible to initiate the attac

Q: How urgent is CVE-2025-2176?

Priority 44/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 7.3REMOTEUPGRADE

CVE-2025-2176 is a high-severity flaw (CVSS 7.3) affecting zvbi. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability classified as critical has been found in libzvbi up to 0.2.43. This affects the function vbi_capture_sim_load_caption of the file src/io-sim.c. The manipulation leads to integer overflow. It is possible to initiate 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 identifier of the patch is ca1672134b3e2962cd392212c73f44f8f4cb489f. It i

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.3 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.7% (top 48%)
CISA exploited list	No
Weakness	CWE-189, CWE-190
Published	2025-03-11
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: zapping-vbi

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-03-11 08:15 UTCPublished CVE record published
2026-06-17 09:06 UTCUpdated Record last modified

zapping-vbi zvbi UPGRADE

Affected: < 0.2.44

Fixed in: 0.2.44

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy zvbi || rpm -q zvbi || zvbi --version

2. UPGRADE to 0.2.44 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade zvbi

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade zvbi

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-2176?

zvbi: upgrade to 0.2.44. Exact commands for each OS are on this page.

Is CVE-2025-2176 being exploited?

CVE-2025-2176 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-2176 affect?

CVE-2025-2176 affects zvbi. Severity is high (CVSS 7.3). A vulnerability classified as critical has been found in libzvbi up to 0.2.43. This affects the function vbi_capture_sim_load_caption of the file src/io-sim.c. The manipulation leads to integer overflow. It is possible to initiate the attac

How urgent is CVE-2025-2176?

Priority 44/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2025-2177 HIGH 7.3 UPGRADE A vulnerability classified as critical was found in libzvbi up to 0.2.43
CVE-2025-2175 MEDIUM 4.3 UPGRADE A vulnerability was found in libzvbi up to 0.2.43
CVE-2025-2174 MEDIUM 5.3 UPGRADE A vulnerability was found in libzvbi up to 0.2.43
CVE-2025-2173 MEDIUM 5.3 UPGRADE A vulnerability was found in libzvbi up to 0.2.43

References

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