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TI-2025-01908 Aliases CVE-2025-2176GHSA-mg5m-vc6f-4mvq

libzvbi io-sim.c vbi_capture_sim_load_caption integer overflow

Priority LOW 38CWE-189Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
Low · Low · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

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 is recommended to upgrade the affected component. The code maintainer was informed beforehand about the issues. She reacted very fast and highly professional.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00674 52nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
—libzvbi0.2.0; 0.2.1; 0.2.2; 0.2.3; 0.2.4; 0.2.5; 0.2.6; 0.2.7; 0.2.8; 0.2.9; 0.2.10; 0.2.11; 0.2.12; 0.2.13; 0.2.14; 0.2.15; 0.2.16; 0.2.17; 0.2.18; 0.2.19; 0.2.20; 0.2.21; 0.2.22; 0.2.23; 0.2.24; 0.2.25; 0.2.26; 0.2.27; 0.2.28; 0.2.29; 0.2.30; 0.2.31; 0.2.32; 0.2.33; 0.2.34; 0.2.35; 0.2.36; 0.2.37; 0.2.38; 0.2.39; 0.2.40; 0.2.41; 0.2.42; 0.2.43—No fix listedCNA
  • libzvbi Vendor— Affected 0.2.0; 0.2.1; 0.2.2; 0.2.3; 0.2.4; 0.2.5; 0.2.6; 0.2.7; 0.2.8; 0.2.9; 0.2.10; 0.2.11; 0.2.12; 0.2.13; 0.2.14; 0.2.15; 0.2.16; 0.2.17; 0.2.18; 0.2.19; 0.2.20; 0.2.21; 0.2.22; 0.2.23; 0.2.24; 0.2.25; 0.2.26; 0.2.27; 0.2.28; 0.2.29; 0.2.30; 0.2.31; 0.2.32; 0.2.33; 0.2.34; 0.2.35; 0.2.36; 0.2.37; 0.2.38; 0.2.39; 0.2.40; 0.2.41; 0.2.42; 0.2.43 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:zapping-vbi:zvbi:*:*:*:*:*:*:*:*before 0.2.44Vulnerablezapping-vbi
  • cpe:2.3:a:zapping-vbi:zvbi:*:*:*:*:*:*:*:* Versions before 0.2.44 Vulnerable ·zapping-vbi

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-2176
  2. 2026-10-03 Alias added: GHSA-mg5m-vc6f-4mvq
  3. 2026-10-04 EPSS moved to the 50th–90th percentile

References

Patch 2

Advisory 1

  • TI-2025-01906 libzvbi conv.c vbi_strndup_iconv_ucs2 integer overflow CVSS 4.0MEDIUM 6.9
  • TI-2025-01909 libzvbi search.c vbi_search_new integer overflow CVSS 4.0MEDIUM 6.9
  • TI-2025-01905 libzvbi conv.c vbi_strndup_iconv_ucs2 uninitialized pointer CVSS 4.0MEDIUM 6.9
  • TI-2025-01907 libzvbi _vbi_strndup_iconv integer overflow CVSS 4.0MEDIUM 5.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences