CVE-2018-9841 json
The export function in libavfilter/vf_signature.c in FFmpeg through 3.4.2 allows remote attackers to cause a denial of service (out-of-arra…
published 2018-04-07 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-21435
- cvss
- 8.8
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.7%
- EPSS 1.7% chance of exploitation in 30 days, percentile 77%
- public exploits
- 0
- none known
Summary
The export function in libavfilter/vf_signature.c in FFmpeg through 3.4.2 allows remote attackers to cause a denial of service (out-of-array access) or possibly have unspecified other impact via a long filename.
Patch / fix
- ffmpeg Debian 14, Debian 13, Debian 12 7:3.4.3-1
debian advisories DEBIAN-CVE-2018-9841
- ffmpeg Ubuntu 18.04 LTS 7:3.4.4-0ubuntu0.18.04.1
ubuntu advisories UBUNTU-CVE-2018-9841
Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
- ffmpeg Alpine 3.24, Alpine 3.23, Alpine 3.22 +12 more 4.0.0-r0
- ffmpeg4 Alpine 3.22, Alpine 3.21, Alpine 3.20 +4 more 4.0.0-r0
alpine advisories ALPINE-CVE-2018-9841
Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
Exploit prediction
1.73% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 8.8 | CVSS:3.0/AV:N/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 |
Classification
- Weakness
-
- CWE-125 Out-of-bounds Read
References
Sources
- CVE List CVE-2018-9841
- NVD CVE-2018-9841
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.