CVE-2026-18299

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-20. A secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — Patch released this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 7.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

GStreamer rtpsbcdepay Use-After-Free 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 processing of RTP payload elements. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29787.

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

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%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
9th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 20, 2026

Last Modified

September 2, 2026

Advisory Details (2)

Auto-updated Aug 20, 2026
Patch available.
generic

GStreamer Security Advisory

https://gstreamer.freedesktop.org/security/sa-2026-0051.html
generic

ZDI-26-467 - TrendAI™ Zero Day Initiative™ (ZDI)

https://www.zerodayinitiative.com/advisories/ZDI-26-467/

Vendor Advisories for CVE-2026-18299(12)

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

Patch Availability(12)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulibgstreamer-plugins-good1.0-dev (1.8.3-1ubuntu0.5+esm3) @ xenial2026-10-05ubuntu
redhatgstreamer1-plugins-good-0:1.16.1-4.el8_4.52026-09-29redhat
redhatgstreamer1-plugins-good-0:1.16.1-5.el8_8.62026-09-29redhat
redhatgstreamer1-plugins-good-0:1.10.4-4.el7_9.62026-09-28redhat
redhatgstreamer1-plugins-good-0:1.16.1-4.el8_6.62026-09-28redhat
redhatgstreamer1-plugins-good-0:1.24.11-1.el10_0.72026-09-24redhat
redhatgstreamer1-plugins-good-0:1.18.4-8.el9_2.62026-09-24redhat
redhatgstreamer1-plugins-good-0:1.22.1-4.el9_4.62026-09-24redhat
redhatgstreamer1-plugins-good-0:1.22.12-5.el9_6.62026-09-24redhat
redhatgstreamer1-plugins-good-0:1.26.7-2.el10_2.82026-08-26redhat
redhatgstreamer1-plugins-good-0:1.16.1-7.el8_10.72026-08-24redhat
redhatgstreamer1-plugins-good-0:1.22.12-7.el9_8.82026-08-24redhat

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

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
gst-plugins-good1.01.22.0-5 ... 1.29.2-1 (75 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
gst-plugins-good1.01.26.10-1 ... 1.29.2-1 (32 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
gst-plugins-good1.01.26.10-1 ... 1.28.4-1 (25 versions)
  • every version up to 1.28.5-1: fixed in 1.28.5-1
—

Weakness Classification(1)

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

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 38× in last 7d / 167× 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 262 total refreshes for this CVE.

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

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

Frequently asked(5)

What is CVE-2026-18299?
CVE-2026-18299 is a high vulnerability published on August 20, 2026. GStreamer rtpsbcdepay Use-After-Free 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…
When was CVE-2026-18299 disclosed?
CVE-2026-18299 was first published on August 20, 2026, with the most recent update on September 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-18299 actively exploited?
CVE-2026-18299 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (9th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-18299?
CVE-2026-18299 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-2026-18299?
A fix for CVE-2026-18299 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-18299 are linked in the Vendor Advisories panel on this page.

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