CVE-2026-18393

mediumpriority · track · 22EPSS 0.004 · 30 %ileDEUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.36% (30th) EPSS
CVSS 5.4 · medium
Is it mine?
2 products
Check your exposure
Who says so?
1 sources
cert_bund

EPSS · scored 2026-10-27

A flaw was found in FFmpeg. The tdsc_load_cursor() function writes beyond the bounds of a heap-allocated buffer when processing crafted TDSC cursor data. A remote attacker could exploit this by supplying a specially crafted video file, potentially leading to a denial of service or arbitrary code execution.

01

cvss

Technical severity, 0–10. One row per scoring source.

5.4
010

base score 0–10 · higher = more severe · hover a vector to decode

v3.15.4mediumCVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:Hprimary · secalert@redhat.com USexploitability 1.2 · impact 4.2
v3.15mediumCVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H/E:Usecondary · CVSS-BT (t0sche)
02

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787US
04

affected products (2)

Products and version ranges known to be affected.

05

advisories (1)

Vendor and ecosystem advisories describing this.

  • WID-SEC-W-2026-3084ffmpeg: Schwachstelle ermöglicht Codeausführung und DoSDeutsch2026-08-30csaf · cert_bundDE

    Ein Angreifer aus einem angrenzenden Netzwerk kann eine Schwachstelle in ffmpeg ausnutzen, um möglicherweise beliebigen Code auszuführen oder einen Denial-of-Service-Zustand zu verursachen.

06

sources

Which sources assert this record, and when.

cert_bundNVDCVE.orgMITRE
published 2026-08-28modified 2026-08-28
07

references (4) nvd

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan