CVE-2026-53132

HIGHPre-NVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-06-25. the CNA's CVSS baseline 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:linux, epss, ghsa
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.

In the Linux kernel, the following vulnerability has been resolved:

vsock/virtio: fix potential unbounded skb queue

virtio_transport_inc_rx_pkt() checks vvs->rx_bytes + len > vvs->buf_alloc.

virtio_transport_recv_enqueue() skips coalescing for packets with VIRTIO_VSOCK_SEQ_EOM.

If fed with packets with len == 0 and VIRTIO_VSOCK_SEQ_EOM, a very large number of packets can be queued because vvs->rx_bytes stays at 0.

Fix this by estimating the skb metadata size:

(Number of skbs in the queue) * SKB_TRUESIZE(0)

CVSS v3
7.1
EG Score
7.1(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
4%
KEV
Not listed

Published

June 25, 2026

Last Modified

August 5, 2026

Advisory Details (4)

Auto-updated Jun 30, 2026
No patch confirmed yet.
generic

vsock/virtio: fix potential unbounded skb queue - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/9bdc637fde66b63d6cad0caacd034888bb7bf5f5
generic

vsock/virtio: fix potential unbounded skb queue - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1eca304f97a34ed5e921e1f0e06c8b241f25bf12
generic

vsock/virtio: fix potential unbounded skb queue - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/100d5b2ffdc6468b9e48532641f29e83efdcb63c
generic

vsock/virtio: fix potential unbounded skb queue - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/059b7dbd20a6f0c539a45ddff1573cb8946685b5

Vendor Advisories for CVE-2026-53132(2)

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
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-31.31) @ resolute2026-09-18ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1013.13) @ resolute2026-09-18ubuntu
ubuntulinux-tools-gcp-edge (7.0.0-1011.11~24.04.1) @ noble2026-09-18ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1018.18~24.04.1) @ noble2026-09-18ubuntu

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 rangeFixed inDependents
linux6.1.106-1 ... 7.2~rc7-1~exp1 (350 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.94-1~bpo12+1 (27 versions)6.12.94-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.0.9-1~bpo13+1 (145 versions)7.0.13-1—

Weakness Classification(1)

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

All Vendor Advisories

(4)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 10× in last 7d / 44× 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 219 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-53132?
CVE-2026-53132 is a high vulnerability published on June 25, 2026. In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: fix potential unbounded skb queue virtiotransportincrxpkt() checks vvs->rxbytes + len > vvs->bufalloc. virtiotransportrecv_enqueue() skips coalescing for packets with VIRTIOVSOCKSEQ_EOM. If fed with packets with len…
When was CVE-2026-53132 disclosed?
CVE-2026-53132 was first published in the National Vulnerability Database on June 25, 2026, with the most recent update on August 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53132 actively exploited?
CVE-2026-53132 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 96.4% of all scored CVEs.
What is the CVSS score of CVE-2026-53132?
CVE-2026-53132 has a CVSS v4.0 base score of 7.1 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-53132?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53132, 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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