CVE-2026-2923 | GStreamer DVB Subtitles Out-Of-Bounds Write Remote Code Execution Vulnerability

GStreamer DVB Subtitles Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The specific flaw exists within the handling of coordinates. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-28838.

Published: 2026-03-16 Last update: 2026-03-17 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-2923 is rated Low Risk (38/100): CVSS High severity, with low exploitation likelihood (EPSS 0.06%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-2923

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-03-14 — 0.06% —

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-2923

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.0 HIGH
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 [email protected]

Weakness enumeration for CVE-2026-2923

OS Trackers for CVE-2026-2923

vendor priority summary link
alpine — CVE-2026-2923: 1 source package rows (gstreamer); 29 state rows across 6 repos (3.19-main, 3.20-main, 3.21-main, 3.22-main, 3.23-main, edge-main); fixed 0, open 29. https://security.alpinelinux.org/vuln/CVE-2026-2923
debian not yet assigned CVE-2026-2923 not yet assigned priority: Debian including 1 source packages (gst-plugins-bad1.0), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2026-2923
redhat high — https://access.redhat.com/security/cve/CVE-2026-2923
suse high CVE-2026-2923 severity important: SUSE including 28 source package names (gstreamer-plugins-bad, gstreamer-plugins-bad-lang, …), 28 product×package rows across 3 product lines (SUSE Liberty Linux 8, SUSE Liberty Linux 9, SUSE Linux Enterprise Server 12 SP2-LTSS): Fixed 15, Known Not Affected 13. https://www.suse.com/security/cve/CVE-2026-2923/
ubuntu medium CVE-2026-2923 medium priority: Ubuntu including 1 source packages (gst-plugins-bad1.0), 8 status rows across 8 suites (bionic, focal, jammy, noble, questing, trusty, upstream, xenial): needs-triage 7, released 1. https://ubuntu.com/security/CVE-2026-2923

Affected software / configurations for CVE-2026-2923

Vendor Product Version Raw CPE
gstreamer gstreamer < 1.28.1 cpe:2.3:a:gstreamer:gstreamer:*:*:*:*:*:*:*:*

References for CVE-2026-2923

cvelogic Threat Intelligence