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Fencer Vulns
high 7.8

CVE-2021-30145 json

A format string vulnerability in mpv through 0.33.0 allows user-assisted remote attackers to achieve code execution via a crafted m3u playl…

published 2021-05-18 5 y ago modified 2026-07-18 3 mo ago also EUVD-2021-17082 , JLSEC-2026-476

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.4%
EPSS 2.4% chance of exploitation in 30 days, percentile 84%
public exploits
0
none known

Summary

A format string vulnerability in mpv through 0.33.0 allows user-assisted remote attackers to achieve code execution via a crafted m3u playlist file.

Patch / fix

  • julia mpv_jll 0.41.0+0
  • mpv Debian 14, Debian 13, Debian 12 0.32.0-3

debian advisories DEBIAN-CVE-2021-30145

  • mpv Package Hub 15 SP2 0.32.0+git.20200301T004003.e7bab0025f-bp152.2.6.1
  • mpv openSUSE Leap 15.2 0.32.0+git.20200301T004003.e7bab0025f-lp152.2.6.1

opensuse advisories openSUSE-SU-2021:0798-1openSUSE-SU-2021:0788-1

  • mpv Alpine 3.13 0.33.0-r1

alpine advisories ALPINE-CVE-2021-30145

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • mpv Arch Linux 1:0.33.1-1

arch linux advisories AVG-1821

Exploit prediction

2.43% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • devel0pment.de https://devel0pment.de/?p=2217 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P
OSV 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
julia mpv_jll
<0.41.0+0
0.41.0+0

Classification

Weakness
  • CWE-134 Use of Externally-Controlled Format String

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.