TI-2019-09642 Aliases CVE-2019-12874 GHSA-hjrf-5287-583q

An issue was discovered in zlib_decompress_extra in modules/demux/mkv/util.cpp in…

MEDIUM 47CWE-415Published 2019-06-18 · Updated 2026-11-02

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-415 and the CVSS impact.

Summary

An issue was discovered in zlib_decompress_extra in modules/demux/mkv/util.cpp in VideoLAN VLC media player 3.x through 3.0.7. The Matroska demuxer, while parsing a malformed MKV file type, has a double free.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.02392 84th 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: No
Technical impact: Partial

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

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:videolan:vlc_media_player::::::::	3.0.0 – 3.0.7	Vulnerable	VideoLAN

cpe:2.3:a:videolan:vlc_media_player:*:*:*:*:*:*:*:* Versions 3.0.0 – 3.0.7 Vulnerable ·VideoLAN

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2019-12874
2026-10-03 Alias added: GHSA-hjrf-5287-583q
2026-11-02 CISA SSVC decision points changed

References

Advisory 6

Other 1

http://git.videolan.org/?p=vlc.git%3Ba=commit%3Bh=81023659c7de5ac2637b4a879195efef50846102

TI-2010-03131 libdirectx_plugin.dll in VideoLAN VLC Media Player before 1.1.8 allows remote attackers… CVSS 2.0HIGH 9.3
TI-2023-25623 Videolan VLC prior to version 3.0.20 contains an incorrect offset read that leads to a… CVSS 3.1CRITICAL 9.8
TI-2008-04437 Stack-based buffer overflow in the parse_master function in the Ty demux plugin… CVSS 2.0HIGH 9.3
TI-2023-25624 Videolan VLC prior to version 3.0.20 contains an Integer underflow that leads to an incorrect packet length. CVSS 3.1HIGH 7.5
TI-2022-19821 An integer overflow in the VNC module in VideoLAN VLC Media Player through 3.0.17.4… CVSS 3.1HIGH 7.8
TI-2012-01563 Stack-based buffer overflow in VideoLAN VLC media player before 2.0.1 allows remote… CVSS 2.0HIGH 9.3

See all 112 →

Sources

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