CVE-2025-11234

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2025-10-03. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.5Exploit: None knownExposed: 0

A fix is available — apply it.

A flaw was found in QEMU. If the QIOChannelWebsock object is freed while it is waiting to complete a handshake, a GSource is leaked. This can lead to the callback firing later on and triggering a use-after-free in the use of the channel. This can be abused by a malicious client with network access to the VNC WebSocket port to cause a denial of service during the WebSocket handshake prior to the VNC client authentication.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
34(Track)
EG Risk 34/100SSVC: 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
Severity75% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
56%
KEV
Not listed

Published

October 3, 2025

Last Modified

September 3, 2026

Advisory Details (10)

Auto-updated Aug 21, 2026
Patch available. Sources: redhat.
redhat Patch Available

Affected: Red Hat Enterprise Linux 8.

https://access.redhat.com/errata/RHSA-2026:5578
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.4 Extended Update Support.

https://access.redhat.com/errata/RHSA-2026:3165
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions.

https://access.redhat.com/errata/RHSA-2026:3077
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions.

https://access.redhat.com/errata/RHSA-2026:22147
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.

https://access.redhat.com/errata/RHSA-2026:18772
redhat Patch Available

Affected: Red Hat Enterprise Linux 10.

https://access.redhat.com/errata/RHSA-2026:1831
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:0702
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:0332
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:0326
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.4 Extended Update Support.

https://access.redhat.com/errata/RHSA-2025:23228

Vendor Advisories for CVE-2025-11234(11)

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 / EcosystemFixed in / PatchReleasedSource
ubuntuqemu-utils (1:2.11+dfsg-1ubuntu7.42+esm5) @ bionic2026-08-24ubuntu
ubuntuqemu-utils (1:6.2+dfsg-2ubuntu6.28) @ jammy2026-08-24ubuntu
redhatqemu-kvm-17:6.2.0-11.el9_0.102026-06-01redhat
redhatqemu-kvm-17:10.1.0-17.el9_82026-05-19redhat
redhatvirt:rhel-8100020251202222937.489197e62026-03-24redhat
redhatqemu-kvm-17:8.2.0-11.el9_4.192026-02-24redhat
redhatqemu-kvm-17:7.2.0-14.el9_2.242026-02-23redhat
redhatqemu-kvm-18:10.0.0-14.el10_1.52026-02-05redhat
redhatrhcos-417.94.202601120213-02026-01-22redhat
redhatrhcos-416.94.202601071926-02026-01-15redhat
redhatrhcos-418.94.202601071817-02026-01-15redhat
redhatqemu-kvm-17:8.2.0-11.el9_4.182025-12-17redhat

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
qemu1:10.0.0+ds-1 ... 1:9.2.2+ds-1~bpo12+1 (225 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
qemu1:7.2+dfsg-7 ... 1:7.2+dfsg-7+deb12u9 (19 versions)1:7.2+dfsg-7+deb12u18—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
qemu1:10.0.2+ds-2 ... 1:10.0.6+ds-0+deb13u2 (10 versions)1:10.0.7+ds-0+deb13u1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
qemu1:10.0.2+ds-2 ... 1:10.1.2+ds-3 (26 versions)1:10.1.3+ds-1—

Weakness Classification(1)

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

Additional Vendor Advisories

(3)

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 17× in last 7d / 49× 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 185 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2025-11234?
CVE-2025-11234 is a high vulnerability published on October 3, 2025. A flaw was found in QEMU. If the QIOChannelWebsock object is freed while it is waiting to complete a handshake, a GSource is leaked. This can lead to the callback firing later on and triggering a use-after-free in the use of the channel. This can be abused by a malicious client with network access…
When was CVE-2025-11234 disclosed?
CVE-2025-11234 was first published in the National Vulnerability Database on October 3, 2025, with the most recent update on September 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-11234 actively exploited?
CVE-2025-11234 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 43.8% of all scored CVEs.
What is the CVSS score of CVE-2025-11234?
CVE-2025-11234 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2025-11234?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-11234, 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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