Description
A NULL-pointer dereference in "Open" in avi.c of VideoLAN VLC Media Player 3.0.11 can a denial of service (DOS) in the application.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | vlc | 3.0.12-1 | — |
| Debian 13 | vlc | 3.0.12-1 | — |
| Debian 12 | vlc | 3.0.12-1 | — |
| Debian 10 | vlc | 3.0.12-0+deb10u1 | DSA-4834-1 |
| Debian 9 | vlc | 3.0.11-0+deb9u2 | DLA-2728-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 22.04 LTS | vlc | 3.0.16-1ubuntu0.1~esm1 | USN-6180-1 |
| Ubuntu Pro 20.04 LTS | vlc | 3.0.9.2-1ubuntu0.1~esm1 | USN-6180-1 |
| Ubuntu Pro 18.04 LTS | vlc | 3.0.8-0ubuntu18.04.1+esm1 | USN-6180-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 16.04 LTS | vlc | 2.2.2-5ubuntu0.16.04.5+esm2 | USN-6180-1 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
GitHub 1 repository
-
DShankle/VLC_CVE-2021-25804_Analysis ★ 0 · May 23, 2022
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 4
- USN-6180-1 vlc vulnerabilities Ubuntu Security Notices (USN) · Jun 25, 2026
- DSA-4834-1 vlc - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2728-1 vlc - security update Debian Security (DSA / DLA) · Mar 9, 2026
- WID-SEC-2023-1515 VLC: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 20, 2023