CVE-2026-58049

EUVD-2026-39969
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.6 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 40.12%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
Red HatRed Hat Enterprise Linux AI 3.0 for RHEL 9
0:6.1.6-3.el9ai ≤
𝑥
< *
ADP
Red HatRed Hat Enterprise Linux AI 3.2 for RHEL 9
0:6.1.6-3.el9ai ≤
𝑥
< *
ADP
Red HatRed Hat Enterprise Linux AI 3.3 for RHEL 9
0:6.1.6-3.el9ai ≤
𝑥
< *
ADP
Red HatRed Hat Enterprise Linux AI 3.5 for RHEL 9
0:6.1.6-1.el9ai ≤
𝑥
< *
ADP
Red HatRed Hat OpenShift AI 3.4
1786611800 ≤
𝑥
< *
ADP
Red HatRed Hat OpenShift AI 3.4
1787076778 ≤
𝑥
< *
ADP
Red HatRed Hat OpenShift AI 3.4
1787077779 ≤
𝑥
< *
ADP
Red HatRed Hat OpenShift AI 3.4
1787076481 ≤
𝑥
< *
ADP
Debian logo
Debian Releases
Debian Product
Codename
ffmpeg
bookworm
vulnerable
bookworm (security)
vulnerable
forky
vulnerable
sid
7:9.0.2-1
fixed
trixie
postponed
trixie (security)
vulnerable
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
ffmpeg
bionic
needs-triage
focal
Fixed 7:4.2.7-0ubuntu0.1+esm17
released
jammy
Fixed 7:4.4.2-0ubuntu0.22.04.1+esm16
released
noble
needs-triage
questing
ignored
resolute
needs-triage
xenial
needs-triage
libav
jammy
dne
noble
dne
questing
dne
resolute
dne
trusty
needs-triage
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
libavcodec58_134
suse enterprise desktop 15 SP7
4.4.8-150600.13.55.1
fixed
suse enterprise sap 15 SP4
4.4.8-150400.3.75.1
fixed
suse enterprise sap 15 SP7
4.4.8-150600.13.55.1
fixed
suse enterprise server 15 SP4
4.4.8-150400.3.75.1
fixed
suse enterprise server 15 SP7
4.4.8-150600.13.55.1
fixed
suse enterprise workstation 15 SP7
4.4.8-150600.13.55.1
fixed
libavformat58_76
suse enterprise desktop 15 SP7
4.4.8-150600.13.55.1
fixed
suse enterprise sap 15 SP4
4.4.8-150400.3.75.1
fixed
suse enterprise sap 15 SP7
4.4.8-150600.13.55.1
fixed
suse enterprise server 15 SP4
4.4.8-150400.3.75.1
fixed
suse enterprise server 15 SP7
4.4.8-150600.13.55.1
fixed
suse enterprise workstation 15 SP7
4.4.8-150600.13.55.1
fixed
libavutil56_70
suse enterprise desktop 15 SP7
4.4.8-150600.13.55.1
fixed
suse enterprise sap 15 SP4
4.4.8-150400.3.75.1
fixed
suse enterprise sap 15 SP7
4.4.8-150600.13.55.1
fixed
suse enterprise server 15 SP4
4.4.8-150400.3.75.1
fixed
suse enterprise server 15 SP7
4.4.8-150600.13.55.1
fixed
suse enterprise workstation 15 SP7
4.4.8-150600.13.55.1
fixed
libpostproc55_9
suse enterprise sap 15 SP4
4.4.8-150400.3.75.1
fixed
suse enterprise server 15 SP4
4.4.8-150400.3.75.1
fixed
libswresample3_9
suse enterprise desktop 15 SP7
4.4.8-150600.13.55.1
fixed
suse enterprise sap 15 SP4
4.4.8-150400.3.75.1
fixed
suse enterprise sap 15 SP7
4.4.8-150600.13.55.1
fixed
suse enterprise server 15 SP4
4.4.8-150400.3.75.1
fixed
suse enterprise server 15 SP7
4.4.8-150600.13.55.1
fixed
suse enterprise workstation 15 SP7
4.4.8-150600.13.55.1
fixed
libswscale5_9
suse enterprise desktop 15 SP7
4.4.8-150600.13.55.1
fixed
suse enterprise sap 15 SP4
4.4.8-150400.3.75.1
fixed
suse enterprise sap 15 SP7
4.4.8-150600.13.55.1
fixed
suse enterprise server 15 SP4
4.4.8-150400.3.75.1
fixed
suse enterprise server 15 SP7
4.4.8-150600.13.55.1
fixed
suse enterprise workstation 15 SP7
4.4.8-150600.13.55.1
fixed