CVE-2026-53704

HIGHPre-NVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-06-15. a secondary CVSS source baseline 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: None knownExposed: 0

A fix is available — apply it.

A flaw was found in GStreamer's RealMedia demuxer in the gst-plugins-ugly package. When processing a RealMedia file containing a specially crafted FILEINFO metadata section, the demuxer parses variable-name and variable-value pairs using re_skip_pascal_string() without validating that offsets remain within the mapped buffer. Additionally, the element count controlling the parsing loop is read from attacker-controlled data without validation, which can cause an infinite loop. A crafted RealMedia file can cause the application to crash, hang, or potentially read limited adjacent memory contents.

CVSS v3
7.1
EG Score
7.1(medium)
EG Risk
32(Track)
EG Risk 32/100SSVC: Track

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
Severity71% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
16%
KEV
Not listed

Published

June 15, 2026

Last Modified

September 8, 2026

Advisory Details (2)

Auto-updated Jun 15, 2026
Patch available. Sources: redhat.
redhat

2487614 – (CVE-2026-53704) CVE-2026-53704 gstreamer1-plugins-ugly-free: GStreamer: Out-of-bounds read in RealMedia demuxer FILEINFO metadata parser

https://bugzilla.redhat.com/show_bug.cgi?id=2487614
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-53704

Vendor Advisories for CVE-2026-53704(5)

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

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatgstreamer1-plugins-ugly-free-0:1.22.12-4.el9_6.12026-08-05redhat
redhatgstreamer1-plugins-ugly-free-0:1.24.11-1.el10_0.22026-08-05redhat
redhatgstreamer1-plugins-ugly-free-0:1.26.7-2.el10_2.12026-07-08redhat
redhatgstreamer1-plugins-ugly-free-0:1.22.12-6.el9_8.12026-07-08redhat

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 rangeFixed inDependents
gst-plugins-ugly1.01.18.4-2 ... 1.29.2-1 (72 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
gst-plugins-ugly1.01.22.0-2 ... 1.29.2-1 (63 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
gst-plugins-ugly1.01.26.10-1 ... 1.29.2-1 (24 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
gst-plugins-ugly1.01.26.10-1 ... 1.28.3-1 (18 versions)1.28.4-1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 59× 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 313 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-53704?
CVE-2026-53704 is a high vulnerability published on June 15, 2026. A flaw was found in GStreamer's RealMedia demuxer in the gst-plugins-ugly package. When processing a RealMedia file containing a specially crafted FILEINFO metadata section, the demuxer parses variable-name and variable-value pairs using reskippascal_string() without validating that offsets remain…
When was CVE-2026-53704 disclosed?
CVE-2026-53704 was first published in the National Vulnerability Database on June 15, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53704 actively exploited?
CVE-2026-53704 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 84.3% of all scored CVEs.
What is the CVSS score of CVE-2026-53704?
CVE-2026-53704 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-53704?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53704, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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