CVE-2026-53222

MEDIUMNVD 5.55.5—
EchelonGraph scoreHIGH confidence

Score 5.5 from GitHub Security Advisory published 2026-06-25. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
5.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.5Exploit: 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:

ptp: ocp: fix resource freeing order

Commit a60fc3294a37 ("ptp: rework ptp_clock_unregister() to disable events") added a call to ptp_disable_all_events() which changes the configuration of pins if they support EXTTS events. In ptp_ocp_detach() pins resources are freed before ptp_clock_unregister() and it leads to use-after-free during driver removal. Fix it by changing the order of free/unregister calls. To avoid irq handler running on the other core while ptp device unregistering, call synchronize_irq() after HW is configured to stop producing irqs and no irqs are in-flight.

CVSS v3
5.5
EG Score
5.5(high)
EPSS
1.4%
KEV
Not listed

Published

June 25, 2026

Last Modified

July 2, 2026

Advisory Details (2)

Auto-updated Jul 3, 2026
No patch confirmed yet.
generic

ptp: ocp: fix resource freeing order - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/aa03698bb28d3be5ee180adb185395054b342b04
generic

ptp: ocp: fix resource freeing order - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/627366c51145a07f675b1800fb5ea2ec960bd900

Vendor Advisories for CVE-2026-53222(1)

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 15× in last 7d / 24× 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 12:12 UTCEG score recompute
  2. 2026-07-06 12:12 UTCGHSA enrichment
  3. 2026-07-06 02:23 UTCEPSS rescore
  4. 2026-07-06 02:23 UTCEPSS rescore
  5. 2026-07-05 14:13 UTCEG score recompute
  6. 2026-07-05 14:13 UTCGHSA enrichment
  7. 2026-07-05 02:31 UTCEPSS rescore
  8. 2026-07-05 02:30 UTCEPSS rescore
  9. 2026-07-04 16:27 UTCEG score recompute▲ 5.50
  10. 2026-07-04 16:27 UTCGHSA enrichment
  11. 2026-07-04 06:31 UTCEPSS rescore
  12. 2026-07-04 06:31 UTCEPSS rescore
  13. 2026-07-02 22:05 UTCNVD updateCVSS v3 → 5.5 · severity → MEDIUM
  14. 2026-07-01 15:07 UTCEPSS rescore
  15. 2026-07-01 14:18 UTCGHSA enrichment
  16. 2026-06-28 14:07 UTCEPSS rescore
  17. 2026-06-28 12:12 UTCEG score recompute
  18. 2026-06-28 12:12 UTCGHSA enrichment
  19. 2026-06-28 04:56 UTCEPSS rescore
  20. 2026-06-28 04:56 UTCEPSS rescore
  21. 2026-06-27 03:08 UTCEPSS rescore
  22. 2026-06-25 13:49 UTCEPSS rescore
  23. 2026-06-25 10:07 UTCEG score recompute
  24. 2026-06-25 10:07 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-53222?
CVE-2026-53222 is a medium vulnerability published on June 25, 2026. In the Linux kernel, the following vulnerability has been resolved: ptp: ocp: fix resource freeing order Commit a60fc3294a37 ("ptp: rework ptpclockunregister() to disable events") added a call to ptpdisableall_events() which changes the configuration of pins if they support EXTTS events. In…
When was CVE-2026-53222 disclosed?
CVE-2026-53222 was first published in the National Vulnerability Database on June 25, 2026, with the most recent update on July 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53222 actively exploited?
CVE-2026-53222 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-53222?
CVE-2026-53222 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-53222?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53222, 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

Explore the affected products and dependency analysis for CVE-2026-53222

Explore →

Is Your Infrastructure Affected by CVE-2026-53222?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs