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
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

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

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.

Data Freshness Timeline

(refreshed 5× 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 203 total refreshes for this CVE.

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

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 96.5% 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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