CVE-2026-58049

highpriority · track · 0EPSS 0.005 · 42 %ileDEEURU

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.50% (42nd) EPSS

CVSS 8.6 · high

Is it mine?

11 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

FFmpeg's RASC video decoder (decode_dlta in libavcodec/rasc.c) performs 32-bit reads and writes at the row cursor before the NEXT_LINE row-boundary check and validates the DLTA region in pixel rather than byte units, so a DLTA run on a PAL8 frame can access several bytes past the row allocation. A crafted media stream using the RASC FourCC, decoded by libavcodec, triggers a bitstream-controlled out-of-bounds heap write and adjacent out-of-bounds read, leading to memory corruption.

cvss

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

8.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.8–8.8

v3.18.6highAV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Hsecondary · FSTEC (BDU) RU

v3.18.6highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Hsecondary · disclosure@vulncheck.comexploitability 3.9 · impact 4.7

v3.17.6highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:Hsecondaryexploitability 2.8 · impact 4.7

v4.08.8highCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:Nsecondary · ENISA EU

v4.08.8highCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · disclosure@vulncheck.com

v4.06.8mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · CVSS-BT (t0sche)

ssvc

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

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USCWE-787US

affected products (11)

Products and version ranges known to be affected.

Open Source ffmpegall versionscert_bundDEcpe:/a:ffmpeg:ffmpeg:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
SUSE openSUSEall versionscert_bundDEcpe:/o:suse:opensuse:-
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
FFMPEG FFmpeg≤ 0 ≤bcd2c69e087a09b07cf45c6bd2428ee1ccb2925cenisa_euvdEU
FFmpeg team FFmpegall versionsfstec_bduRU
Red Hat, Inc. Red Hat Enterprise Linux AI≤ 3fstec_bduRU
Red Hat, Inc. Red Hat OpenShift AIall versionsfstec_bduRU
ООО «Ред Софт» РЕД ОС≤ 7.3fstec_bduRU
ООО «Ред Софт» РЕД ОС≤ 8.0fstec_bduRU

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-2109ffmpeg RASC video decoder): Schwachstelle ermöglicht Denial of Service und SpeicherkorruptionDeutsch2026-06-28csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in ffmpeg ausnutzen, um einen Denial of Service Angriff durchzuführen oder eine Speicherbeschädigung zu verursachen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund NVD CVE.org MITRE

published 2026-06-28modified 2026-09-01

references (20)

External citations — patches, advisories, analysis.

scry

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