CVE-2025-40091 Vulnerability Analysis & Exploit Details

CVE-2025-40091
Vulnerability Scoring

Analysis In Progress
Analysis In Progress

Attack Complexity Details

  • Attack Complexity:
    Attack Complexity Analysis In Progress
  • Attack Vector:
    Attack Vector Under Analysis
  • Privileges Required: None
    No authentication is required for exploitation.
  • Scope:
    Impact is confined to the initially vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2025-40091 Details

Status: Awaiting Analysis

Published on: 30 Oct 2025, 10:15 UTC

CVSS Release:

CVE-2025-40091 Vulnerability Summary

CVE-2025-40091: 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

Assessing the Risk of CVE-2025-40091

Access Complexity Graph

The exploitability of CVE-2025-40091 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2025-40091

No exploitability data is available for CVE-2025-40091.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2025-40091, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2025-40091, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: None
    CVE-2025-40091 does not compromise confidentiality.
  • Integrity: None
    CVE-2025-40091 does not impact data integrity.
  • Availability: None
    CVE-2025-40091 does not affect system availability.

CVE-2025-40091 References

External References

CWE Common Weakness Enumeration

Unknown

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