CVE-2025-40091

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

A fix is available — apply it.

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

ixgbe: fix too early devlink_free() in ixgbe_remove()

Since ixgbe_adapter is embedded in devlink, calling devlink_free() prematurely in the ixgbe_remove() path can lead to UAF. Move devlink_free() to the end.

KASAN report:

BUG: KASAN: use-after-free in ixgbe_reset_interrupt_capability+0x140/0x180 [ixgbe] Read of size 8 at addr ffff0000adf813e0 by task bash/2095 CPU: 1 UID: 0 PID: 2095 Comm: bash Tainted: G S 6.17.0-rc2-tnguy.net-queue+ #1 PREEMPT(full) [...] Call trace: show_stack+0x30/0x90 (C) dump_stack_lvl+0x9c/0xd0 print_address_description.constprop.0+0x90/0x310 print_report+0x104/0x1f0 kasan_report+0x88/0x180 __asan_report_load8_noabort+0x20/0x30 ixgbe_reset_interrupt_capability+0x140/0x180 [ixgbe] ixgbe_clear_interrupt_scheme+0xf8/0x130 [ixgbe] ixgbe_remove+0x2d0/0x8c0 [ixgbe] pci_device_remove+0xa0/0x220 device_remove+0xb8/0x170 device_release_driver_internal+0x318/0x490 device_driver_detach+0x40/0x68 unbind_store+0xec/0x118 drv_attr_store+0x64/0xb8 sysfs_kf_write+0xcc/0x138 kernfs_fop_write_iter+0x294/0x440 new_sync_write+0x1fc/0x588 vfs_write+0x480/0x6a0 ksys_write+0xf0/0x1e0 __arm64_sys_write+0x70/0xc0 invoke_syscall.constprop.0+0xcc/0x280 el0_svc_common.constprop.0+0xa8/0x248 do_el0_svc+0x44/0x68 el0_svc+0x54/0x160 el0t_64_sync_handler+0xa0/0xe8 el0t_64_sync+0x1b0/0x1b8

CVSS v3
—
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
7%
KEV
Not listed

Published

October 30, 2025

Last Modified

April 15, 2026

References (2)

Patch Availability(6)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-hwe-24.04-edge (6.17.0-14.14) @ questing2026-05-21ubuntu
ubuntulinux-tools-gcp-64k-6.17 (6.17.0-1007.7) @ questing2026-05-21ubuntu
ubuntulinux-tools-oracle-64k-6.17 (6.17.0-1007.7) @ questing2026-05-21ubuntu
ubuntulinux-tools-azure-6.17 (6.17.0-1008.8) @ questing2026-05-21ubuntu
ubuntulinux-tools-oem-6.17 (6.17.0-1011.11) @ noble2026-05-21ubuntu
linuxKernel @ 6.17.5—osv

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.

All Vendor Advisories

(5)

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 7× in last 7d / 37× 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 132 total refreshes for this CVE.

  1. 2026-08-04 15:09 UTCEPSS rescore
  2. 2026-08-04 10:37 UTCEPSS rescore
  3. 2026-08-03 10:35 UTCEPSS rescore
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  14. 2026-07-23 02:55 UTCEG score recompute
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  1. 2026-07-15 01:59 UTCEPSS rescore
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  7. 2026-07-11 08:27 UTCEPSS rescore
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  9. 2026-07-10 02:53 UTCOSV refresh
  10. 2026-07-09 19:09 UTCEPSS rescore
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  12. 2026-07-07 13:45 UTCEPSS rescore
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  23. 2026-06-28 14:07 UTCEPSS rescore
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  25. 2026-06-28 04:55 UTCEPSS rescore
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  27. 2026-06-27 03:08 UTCEPSS rescore
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  39. 2026-06-21 13:31 UTCOSV refresh
  40. 2026-06-21 01:59 UTCEPSS rescore
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  42. 2026-06-19 19:25 UTCEPSS rescore
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  44. 2026-06-18 17:52 UTCEPSS rescore
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  49. 2026-06-13 23:00 UTCEPSS rescore
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  51. 2026-06-11 14:00 UTCEPSS rescore
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  56. 2026-06-07 15:24 UTCEPSS rescore
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  65. 2026-06-02 20:12 UTCEPSS rescore
  66. 2026-06-02 08:09 UTCOSV refresh
  67. 2026-06-01 13:51 UTCEPSS rescore
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Frequently asked(4)

What is CVE-2025-40091?
CVE-2025-40091 is a publicly disclosed vulnerability published on October 30, 2025. In the Linux kernel, the following vulnerability has been resolved: ixgbe: fix too early devlinkfree() in ixgberemove() Since ixgbeadapter is embedded in devlink, calling devlinkfree() prematurely in the ixgberemove() path can lead to UAF. Move devlinkfree() to the end. KASAN report: BUG: KASAN:…
When was CVE-2025-40091 disclosed?
CVE-2025-40091 was first published in the National Vulnerability Database on October 30, 2025, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-40091 actively exploited?
CVE-2025-40091 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 93.2% of all scored CVEs.
How do I remediate CVE-2025-40091?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-40091, 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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