CVE-2026-64461

UNRATEDCVSS · not yet scored
—
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No CVSS published and no exploitation signals yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS v2: —Exploit: 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:

PCI: mediatek: Fix IRQ domain leak when port fails to enable

When mtk_pcie_enable_port() fails, mtk_pcie_port_free() removes the port from pcie->ports and frees the port structure. However, the IRQ domains set up earlier by mtk_pcie_init_irq_domain() are never freed.

Fix this by refactoring mtk_pcie_irq_teardown() into a per-port helper, mtk_pcie_irq_teardown_port(), and calling it from mtk_pcie_setup() when mtk_pcie_enable_port() fails. Since the IRQ teardown must only happen in the probe error path (during resume, child devices may have active MSI mappings and the NOIRQ context prohibits sleeping locks), mtk_pcie_enable_port() is changed to return an error code so callers can distinguish the two paths and act accordingly.

This issue was reported by Sashiko while reviewing the EcoNet EN7528 SoC support series.

CVSS v3
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EchelonGraph score
Not yet assessedNo source has published severity data for this CVE yet — no CVSS score from NVD or a CNA, no GitHub advisory, and it is not in CISA KEV. This is not a rating of zero; we cannot assess it yet.
EG Score
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EG Risk
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EPSS PROB
0%
EPSS %ILE
8%
KEV
Not listed

Published

July 25, 2026

Last Modified

August 17, 2026

References (8)

Vendor Advisories for CVE-2026-64461(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(6 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 5.10.92-2 (55 versions)5.10.262-1—
linux-6.16.1.106-3~deb11u1 ... 6.1.177-1~deb11u1 (22 versions)6.1.180-1~deb11u1—
Debian:12(2)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 6.1.99-1 (55 versions)6.1.180-1—
linux-6.12—6.12.100-1~deb12u1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.96-1 (31 versions)6.12.100-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.1~rc7-1~exp1 (156 versions)7.1.4-1—

Data Freshness Timeline

(refreshed 6× in last 7d / 39× 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. 2026-08-30 01:22 UTCEPSS rescore
  2. 2026-08-30 00:02 UTCGHSA enrichment
  3. 2026-08-28 21:42 UTCEPSS rescore
  4. 2026-08-26 14:47 UTCEPSS rescore
  5. 2026-08-25 18:37 UTCGHSA enrichment
  6. 2026-08-25 13:49 UTCEPSS rescore
  7. 2026-08-23 00:19 UTCEPSS rescore
  8. 2026-08-22 22:19 UTCGHSA enrichment
  9. 2026-08-21 23:49 UTCEPSS rescore
  10. 2026-08-20 02:01 UTCGHSA enrichment
  11. 2026-08-19 17:04 UTCEPSS rescore
  12. 2026-08-18 13:48 UTCEPSS rescore
  13. 2026-08-17 13:47 UTCEPSS rescore
  14. 2026-08-17 05:43 UTCGHSA enrichment
  15. 2026-08-17 05:25 UTCNVD update
  16. 2026-08-17 05:16 UTCGHSA enrichment
  17. 2026-08-17 05:05 UTCMITRE cvelistV5
  18. 2026-08-16 14:56 UTCEPSS rescore
  19. 2026-08-15 01:30 UTCEPSS rescore
  20. 2026-08-15 00:57 UTCGHSA enrichment
  21. 2026-08-13 22:00 UTCEPSS rescore
  22. 2026-08-12 13:51 UTCEPSS rescore
  23. 2026-08-12 04:40 UTCGHSA enrichment
  24. 2026-08-11 00:00 UTCEPSS rescore
  25. 2026-08-09 13:47 UTCEPSS rescore
Show 30 more
  1. 2026-08-09 08:22 UTCGHSA enrichment
  2. 2026-08-08 16:37 UTCEPSS rescore
  3. 2026-08-06 13:47 UTCEPSS rescore
  4. 2026-08-06 12:05 UTCGHSA enrichment
  5. 2026-08-05 19:17 UTCEPSS rescore
  6. 2026-08-05 19:17 UTCEPSS rescore
  7. 2026-08-04 15:10 UTCEPSS rescore
  8. 2026-08-04 10:39 UTCEPSS rescore
  9. 2026-08-03 15:48 UTCGHSA enrichment
  10. 2026-08-03 10:36 UTCEPSS rescore
  11. 2026-08-02 02:27 UTCEPSS rescore
  12. 2026-08-01 04:16 UTCEPSS rescore
  13. 2026-07-31 19:31 UTCEG score recompute
  14. 2026-07-31 19:31 UTCGHSA enrichment
  15. 2026-07-30 16:28 UTCEPSS rescore
  16. 2026-07-30 01:30 UTCEPSS rescore
  17. 2026-07-30 01:30 UTCEPSS rescore
  18. 2026-07-28 23:04 UTCEG score recompute
  19. 2026-07-28 23:04 UTCGHSA enrichment
  20. 2026-07-28 15:37 UTCEPSS rescore
  21. 2026-07-27 14:14 UTCEPSS rescore
  22. 2026-07-26 14:54 UTCEPSS rescore
  23. 2026-07-26 14:54 UTCEPSS rescore
  24. 2026-07-26 02:47 UTCEG score recompute
  25. 2026-07-26 02:47 UTCGHSA enrichment
  26. 2026-07-25 14:18 UTCEPSS rescore
  27. 2026-07-25 14:18 UTCEPSS rescore
  28. 2026-07-25 10:39 UTCNVD update
  29. 2026-07-25 09:26 UTCEG score recompute
  30. 2026-07-25 09:21 UTCMITRE cvelistV5first tracked

Frequently asked(4)

What is CVE-2026-64461?
CVE-2026-64461 is a publicly disclosed vulnerability published on July 25, 2026. In the Linux kernel, the following vulnerability has been resolved: PCI: mediatek: Fix IRQ domain leak when port fails to enable When mtkpcieenableport() fails, mtkpcieportfree() removes the port from pcie->ports and frees the port structure. However, the IRQ domains set up earlier by…
When was CVE-2026-64461 disclosed?
CVE-2026-64461 was first published in the National Vulnerability Database on July 25, 2026, with the most recent update on August 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-64461 actively exploited?
CVE-2026-64461 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 91.9% of all scored CVEs.
How do I remediate CVE-2026-64461?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-64461, 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.

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