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Fencer Vulns
medium 5.6

CVE-2025-47806 json

In GStreamer through 1.26.1, the subparse plugin's parse_subrip_time function may write data past the bounds of a stack buffer, leading to…

published 2025-08-07 15 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-23942

cvss
5.6
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 26%
public exploits
0
none known

Summary

In GStreamer through 1.26.1, the subparse plugin's parse_subrip_time function may write data past the bounds of a stack buffer, leading to a crash.

Patch / fix

  • gstreamer gstreamer 1.26.2
  • gst-plugins-base1.0 Debian 12 1.22.0-3+deb12u5
  • gst-plugins-base1.0 Debian 14, Debian 13 1.26.2-1

debian advisories DEBIAN-CVE-2025-47806

  • gst-plugins-base1.0 Ubuntu 22.04 LTS 1.20.1-1ubuntu0.5
  • gst-plugins-base1.0 Ubuntu 24.04 LTS 1.24.2-1ubuntu0.3
  • gst-plugins-base1.0 Ubuntu 25.10 1.26.2-1
  • gst-plugins-base1.0 Ubuntu Pro 16.04 LTS 1.8.3-1ubuntu0.3+esm3
  • gst-plugins-base1.0 Ubuntu Pro 18.04 LTS 1.14.5-0ubuntu1~18.04.3+esm2
  • gst-plugins-base1.0 Ubuntu Pro 20.04 LTS 1.16.3-0ubuntu1.4+esm1

ubuntu advisories UBUNTU-CVE-2025-47806

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

  • gstreamer-plugins-base Linux Micro 6.1 1.24.7-slfo.1.1_3.1
  • gstreamer-plugins-base SLE Micro 5.5 1.22.0-150500.3.14.1
  • gstreamer-plugins-base Linux Micro 6.0 1.22.9-3.1
  • gstreamer-plugins-base SLE Micro 5.4, SLE Micro 5.3 1.20.1-150400.3.14.1
  • gstreamer-plugins-base SLE Module for Package Hub 15 SP7, SLE Module for Package Hub 15 SP6, SLE Module for Basesystem 15 SP7 +2 more 1.24.0-150600.3.11.1
  • gstreamer-plugins-base SLES for SAP 15 SP3, SLES 15 SP3-LTSS, SLE Micro 5.2 +2 more 1.16.3-150200.4.19.1
  • gstreamer-0_10-plugins-base SLES LTSS Extended Security 12 SP5 0.10.36-18.9.1
  • gstreamer-plugins-base SLES LTSS Extended Security 12 SP5 1.8.3-13.21.1

suse advisories SUSE-SU-2025:20751-1SUSE-SU-2025:02919-1SUSE-SU-2025:02796-1SUSE-SU-2025:20507-1SUSE-SU-2025:02472-1SUSE-SU-2025:02304-1

  • gst-plugins-base Alpine 3.24, Alpine 3.23, Alpine 3.22 1.26.2-r0

alpine advisories ALPINE-CVE-2025-47806

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

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-47806 updated cvss 5.6

gstreamer1-plugins-base: GStreamer Subparse Stack Buffer Overflow

  • Red Hat Enterprise Linux 7 gstreamer1-plugins-base, gstreamer1-plugins-base-tools Red Hat Enterprise Linux 8 gstreamer1-plugins-base Red Hat Enterprise Linux 9 gstreamer1-plugins-base, gstreamer1-plugins-base-tools Red Hat Enterprise Linux 10 gstreamer1-plugins-base
    affected: workaround, no fix available “Fix deferred”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
15 mo ago

Exploit prediction

0.33% chance of exploitation in the next 30 days, higher than 26% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/atredispartners/advisories/blob/master/2025/ATREDIS-2025-0003.md referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 5.6 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
CNA 3.1 5.6 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

Classification

Weakness
  • CWE-121 Stack-based Buffer Overflow

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.