HIGH

CVE-2026-18297

CVSS v3

7.8

HIGH

EPSS Score

0.2 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

gstreamer1-plugins-baseAlmaLinux:10all versions · fixed in 1.26.7-2.el10_2.1and 2 other packages
gstreamer1-plugins-baseAlmaLinux:9all versions · fixed in 1.22.12-8.el9_8.2
gstreamer1-plugins-baseAlmaLinux:8all versions · fixed in 1.16.1-6.el8_10.1and 1 other package

Vendor advisories

CVE-2026-18297 Red Hat Product Security328 products fixed · 8 known affected
gstreamer-plugins-base: GStreamer: Arbitrary code execution via OGG file parsing buffer overflow
gstreamer-plugins-base as a component of Red Hat Enterprise Linux 7 · gstreamer-plugins-base-devel as a component of Red Hat Enterprise Linux 7 · gstreamer-plugins-base-devel-docs as a component of Red Hat Enterprise Linux 7
RHSA-2026:70260 Red Hat Product Security37 products fixed
Red Hat Security Advisory: gstreamer1-plugins-base security update
RHSA-2026:69866 Red Hat Product Security31 products fixed
Red Hat Security Advisory: gstreamer1-plugins-base security update
RHSA-2026:69531 Red Hat Product Security37 products fixed
Red Hat Security Advisory: gstreamer1-plugins-base security update
RHSA-2026:69100 Red Hat Product Security30 products fixed
Red Hat Security Advisory: gstreamer1-plugins-base security update
RHSA-2026:68636 Red Hat Product Security25 products fixed
Red Hat Security Advisory: gstreamer1-plugins-base security update

6 more advisories

Full record on NVD

Description

GStreamer OGG File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of OGG files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29584.

Technical details

CVSS v3 Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published: 2026-08-20
Last Modified: 2026-08-21

Frequently asked questions

What is CVE-2026-18297?

Is CVE-2026-18297 actively exploited?

Active exploitation of CVE-2026-18297 has not been confirmed. Its EPSS score was 0.2% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-18297?

CVE-2026-18297 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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