CVE-2026-53132

HIGHPre-NVD 7.17.1—
EchelonGraph scoreHIGH confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-06-25. a secondary CVSS source baseline 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.1Exploit: NoneExposed: 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(high)
EPSS
3.7%
KEV
Not listed

Published

June 25, 2026

Last Modified

July 6, 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.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 32× 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.

  1. 2026-07-06 21:11 UTCEG score recompute
  2. 2026-07-06 21:10 UTCGHSA enrichment
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 16:27 UTCEPSS rescore
  5. 2026-07-06 08:06 UTCEG score recompute
  6. 2026-07-06 08:06 UTCGHSA enrichment
  7. 2026-07-05 19:08 UTCEG score recompute
  8. 2026-07-05 19:08 UTCGHSA enrichment
  9. 2026-07-05 06:09 UTCEG score recompute
  10. 2026-07-05 06:09 UTCGHSA enrichment
  11. 2026-07-05 02:31 UTCEPSS rescore
  12. 2026-07-05 02:30 UTCEPSS rescore
  13. 2026-07-04 17:09 UTCEG score recompute
  14. 2026-07-04 17:09 UTCGHSA enrichment
  15. 2026-07-04 06:31 UTCEPSS rescore
  16. 2026-07-04 06:31 UTCEPSS rescore
  17. 2026-07-04 04:09 UTCEG score recompute
  18. 2026-07-04 04:09 UTCGHSA enrichment
  19. 2026-07-03 14:45 UTCEG score recompute
  20. 2026-07-03 14:45 UTCGHSA enrichment
  21. 2026-07-03 01:47 UTCEG score recompute
  22. 2026-07-03 01:47 UTCGHSA enrichment
  23. 2026-07-02 12:48 UTCEG score recompute
  24. 2026-07-02 12:48 UTCGHSA enrichment
  25. 2026-07-01 23:50 UTCEG score recompute
Show 19 more
  1. 2026-07-01 23:50 UTCGHSA enrichment
  2. 2026-07-01 15:07 UTCEPSS rescore
  3. 2026-07-01 10:52 UTCEG score recompute
  4. 2026-07-01 10:52 UTCGHSA enrichment
  5. 2026-06-30 23:22 UTCEPSS rescore
  6. 2026-06-30 21:52 UTCEG score recompute▲ 7.10
  7. 2026-06-30 21:52 UTCGHSA enrichment
  8. 2026-06-29 14:06 UTCEPSS rescore
  9. 2026-06-29 14:06 UTCEPSS rescore
  10. 2026-06-28 14:07 UTCEPSS rescore
  11. 2026-06-28 07:52 UTCMITRE cvelistV5CVSS v3 → 7.1 · severity → HIGH
  12. 2026-06-28 04:56 UTCEPSS rescore
  13. 2026-06-28 04:56 UTCEPSS rescore
  14. 2026-06-28 04:01 UTCEG score recompute
  15. 2026-06-28 04:01 UTCGHSA enrichment
  16. 2026-06-27 03:08 UTCEPSS rescore
  17. 2026-06-25 13:49 UTCEPSS rescore
  18. 2026-06-25 10:10 UTCEG score recompute
  19. 2026-06-25 10:10 UTCGHSA enrichment

Related CVEs(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 July 6, 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 3.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-53132?
CVE-2026-53132 has a CVSS v3 base score of 7.1 (NVD).
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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