CVE-2026-2923

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-03-16. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 7.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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.

CVSS v3
7.8
EG Score
7.8HIGHmedium confidence
EG Risk
35
EG Risk 35/100

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity78% × 45%
Exploitation1% × 40%
Automatability0% × 15%
EPSS PROB
0.4%
EPSS %ILE
26th
KEV
Not listed

Published

March 16, 2026

Last Modified

July 21, 2026

Advisory Details (10)

Auto-updated Jul 1, 2026
Patch available. Sources: redhat.
redhatMentions a patch (unverified)

cve-details

https://access.redhat.com/security/cve/CVE-2026-2923
redhatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 9.6 Extended Update Support.

https://access.redhat.com/errata/RHSA-2026:8862
redhatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 10.0 Extended Update Support.

https://access.redhat.com/errata/RHSA-2026:8854
redhatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 8.

https://access.redhat.com/errata/RHSA-2026:6750
redhatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 9.

https://access.redhat.com/errata/RHSA-2026:6300
redhatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 10.

https://access.redhat.com/errata/RHSA-2026:6259
redhatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 9.

https://access.redhat.com/errata/RHSA-2026:19180
redhatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 10.

https://access.redhat.com/errata/RHSA-2026:19024
generic

ZDI-26-161 - TrendAI™ Zero Day Initiative™ (ZDI)

https://www.zerodayinitiative.com/advisories/ZDI-26-161/
generic

dvbsuboverlay: Add missing bounds checks to the parser everywhere (3b8253f4) · Commits · GStreamer / gstreamer · GitLab

https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/3b8253f447bcc9831dbf643d2c69b205fedbe086

Vendor Advisories for CVE-2026-2923(8)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(7)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatgstreamer1-plugins-ugly-free-0:1.26.7-2.el10_22026-05-19redhat
redhatgstreamer1-plugins-ugly-free-0:1.22.12-6.el9_82026-05-19redhat
redhatgstreamer1-plugins-ugly-free-0:1.22.12-4.el9_62026-04-20redhat
redhatgstreamer1-plugins-ugly-free-0:1.24.11-1.el10_0.12026-04-20redhat
redhatgstreamer1-plugins-good-0:1.16.1-6.el8_102026-04-07redhat
redhatgstreamer1-plugins-ugly-free-0:1.24.11-2.el10_12026-03-31redhat
redhatgstreamer1-plugins-ugly-free-0:1.22.12-4.el9_72026-03-31redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
gst-plugins-bad1.01.18.4-3 ... 1.18.4-3+deb11u5 (6 versions)
  • every version up to 1.18.4-3+deb11u6: fixed in 1.18.4-3+deb11u6
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
gst-plugins-bad1.01.22.0-4 ... 1.22.0-4+deb12u6 (7 versions)
  • every version up to 1.22.0-4+deb12u7: fixed in 1.22.0-4+deb12u7
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
gst-plugins-bad1.01.26.2-3
  • every version up to 1.26.2-3+deb13u1: fixed in 1.26.2-3+deb13u1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
gst-plugins-bad1.01.26.10-1 ... 1.28.0-1 (23 versions)
  • every version up to 1.28.1-1: fixed in 1.28.1-1
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 7× in last 7d / 23× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 152 total refreshes for this CVE.

  1. 2026-10-10 20:00 UTCEPSS rescore
  2. 2026-10-09 20:07 UTCEPSS rescore
  3. 2026-10-08 17:12 UTCEPSS rescore
  4. 2026-10-07 23:47 UTCEPSS rescore
  5. 2026-10-06 15:17 UTCEPSS rescore
  6. 2026-10-05 17:42 UTCEPSS rescore
  7. 2026-10-04 23:21 UTCEPSS rescore
  8. 2026-10-03 14:25 UTCEPSS rescore
  9. 2026-10-01 19:49 UTCEPSS rescore
  10. 2026-09-30 15:03 UTCEPSS rescore
  11. 2026-09-28 13:51 UTCEPSS rescore
  12. 2026-09-26 15:58 UTCEPSS rescore
  13. 2026-09-26 00:26 UTCEPSS rescore
  14. 2026-09-21 22:16 UTCOSV refresh
  15. 2026-09-20 20:15 UTCEPSS rescore
  16. 2026-09-20 20:15 UTCEPSS rescore
  17. 2026-09-18 19:28 UTCEPSS rescore
  18. 2026-09-18 19:27 UTCEPSS rescore
  19. 2026-09-17 19:30 UTCEPSS rescore
  20. 2026-09-16 14:08 UTCEPSS rescore
  21. 2026-09-16 05:15 UTCEPSS rescore
  22. 2026-09-12 15:01 UTCEPSS rescore
  23. 2026-09-11 14:52 UTCEPSS rescore
  24. 2026-09-10 09:34 UTCEPSS rescore
  25. 2026-09-08 22:00 UTCEPSS rescore
Show 75 more
  1. 2026-09-07 16:01 UTCEPSS rescore
  2. 2026-09-06 13:47 UTCEPSS rescore
  3. 2026-09-06 13:47 UTCEPSS rescore
  4. 2026-09-04 05:06 UTCEPSS rescore
  5. 2026-09-02 18:38 UTCOSV refresh
  6. 2026-09-02 14:11 UTCEPSS rescore
  7. 2026-09-01 13:53 UTCEPSS rescore
  8. 2026-09-01 04:39 UTCEPSS rescore
  9. 2026-09-01 04:39 UTCEPSS rescore
  10. 2026-08-30 19:17 UTCEPSS rescore
  11. 2026-08-30 01:22 UTCEPSS rescore
  12. 2026-08-28 21:41 UTCEPSS rescore
  13. 2026-08-27 14:25 UTCEPSS rescore
  14. 2026-08-26 14:46 UTCEPSS rescore
  15. 2026-08-25 13:49 UTCEPSS rescore
  16. 2026-08-24 14:17 UTCEPSS rescore
  17. 2026-08-23 00:19 UTCEPSS rescore
  18. 2026-08-21 23:49 UTCEPSS rescore
  19. 2026-08-20 22:55 UTCEPSS rescore
  20. 2026-08-20 22:55 UTCEPSS rescore
  21. 2026-08-19 17:03 UTCEPSS rescore
  22. 2026-08-18 13:48 UTCEPSS rescore
  23. 2026-08-17 13:47 UTCEPSS rescore
  24. 2026-08-16 14:56 UTCEPSS rescore
  25. 2026-08-16 11:24 UTCEG score recompute
  26. 2026-08-16 11:24 UTCVendor advisory
  27. 2026-08-16 11:24 UTCGHSA enrichment
  28. 2026-08-16 02:14 UTCEPSS rescore
  29. 2026-08-15 01:30 UTCEPSS rescore
  30. 2026-08-14 19:59 UTCVendor advisory
  31. 2026-08-14 19:59 UTCGHSA enrichment
  32. 2026-08-14 07:30 UTCEG score recompute
  33. 2026-08-14 07:30 UTCVendor advisory
  34. 2026-08-14 07:30 UTCGHSA enrichment
  35. 2026-08-13 22:00 UTCEPSS rescore
  36. 2026-08-12 22:18 UTCEG score recompute
  37. 2026-08-12 22:18 UTCVendor advisory
  38. 2026-08-12 22:18 UTCGHSA enrichment
  39. 2026-08-12 13:50 UTCEPSS rescore
  40. 2026-08-11 21:35 UTCEG score recompute
  41. 2026-08-11 21:35 UTCVendor advisory
  42. 2026-08-11 21:35 UTCGHSA enrichment
  43. 2026-08-11 04:43 UTCEG score recompute
  44. 2026-08-11 04:43 UTCVendor advisory
  45. 2026-08-11 04:43 UTCGHSA enrichment
  46. 2026-08-11 00:00 UTCEPSS rescore
  47. 2026-08-10 05:21 UTCVendor advisory
  48. 2026-08-10 05:21 UTCGHSA enrichment
  49. 2026-08-09 18:13 UTCEG score recompute
  50. 2026-08-09 18:13 UTCVendor advisory
  51. 2026-08-09 18:13 UTCGHSA enrichment
  52. 2026-08-09 13:46 UTCEPSS rescore
  53. 2026-08-09 07:06 UTCEG score recompute
  54. 2026-08-09 07:06 UTCVendor advisory
  55. 2026-08-09 07:06 UTCGHSA enrichment
  56. 2026-08-08 16:37 UTCEPSS rescore
  57. 2026-08-08 04:50 UTCVendor advisory
  58. 2026-08-08 04:50 UTCGHSA enrichment
  59. 2026-08-07 17:44 UTCEG score recompute
  60. 2026-08-07 17:44 UTCVendor advisory
  61. 2026-08-07 17:44 UTCGHSA enrichment
  62. 2026-08-06 19:36 UTCEG score recompute
  63. 2026-08-06 19:36 UTCVendor advisory
  64. 2026-08-06 19:36 UTCGHSA enrichment
  65. 2026-08-06 13:46 UTCEPSS rescore
  66. 2026-08-06 01:45 UTCEG score recompute
  67. 2026-08-06 01:45 UTCVendor advisory
  68. 2026-08-06 01:45 UTCGHSA enrichment
  69. 2026-08-05 19:17 UTCEPSS rescore
  70. 2026-08-04 15:10 UTCEPSS rescore
  71. 2026-08-04 00:56 UTCEG score recompute
  72. 2026-08-04 00:56 UTCVendor advisory
  73. 2026-08-04 00:56 UTCGHSA enrichment
  74. 2026-08-03 10:36 UTCEPSS rescore
  75. 2026-08-02 16:55 UTCEG score recompute

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-2923?
CVE-2026-2923 is a high vulnerability published on March 16, 2026. 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…
When was CVE-2026-2923 disclosed?
CVE-2026-2923 was first published on March 16, 2026, with the most recent update on July 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-2923 actively exploited?
CVE-2026-2923 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (26th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-2923?
CVE-2026-2923 has a CVSS base score of 7.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-2923?
A fix for CVE-2026-2923 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-2923 are linked in the Vendor Advisories panel on this page.

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