CVE-2025-40301
Last modified
CVE-2025-40301 is a high-severity vulnerability rated 7.6/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_event: validate skb length for unknown CC opcode In hci_cmd_complete_evt(), if the command complete event has an unknown opcode, we assume the first byte of the remaining skb->data contains the return status. However, parameter data has previously been pulled in hci_event_func(), which may leave the skb empty. EPSS estimates a 0.17% chance of exploitation in the next 30 days.
Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_event: validate skb length for unknown CC opcode In hci_cmd_complete_evt(), if the command complete event has an unknown opcode, we assume the first byte of the remaining skb->data contains the return status. However, parameter data has previously been pulled in hci_event_func(), which may leave the skb empty. If so, using skb->data[0] for the return status uses un-init memory. The fix is to check skb->len before using skb->data.
Metrics
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= afcb3369f46ed5dc883a7b92f2dd1e264d79d388, < fea895de78d3bb2f0c09db9f10b18f8121b15759; >= afcb3369f46ed5dc883a7b92f2dd1e264d79d388, < 779f83a91d4f1bf5ddfeaf528420cbb6dbf03fa8; >= afcb3369f46ed5dc883a7b92f2dd1e264d79d388, < cf2c2acec1cf456c3d11c11a7589e886a0f963a9; >= afcb3369f46ed5dc883a7b92f2dd1e264d79d388, < 1a0ddaaf97405dbd11d4cb5a961a3f82400e8a50; >= afcb3369f46ed5dc883a7b92f2dd1e264d79d388, < 5c5f1f64681cc889d9b13e4a61285e9e029d6ab5 |
| Linux | Linux | 6.1 |
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2025-40301?
How severe is CVE-2025-40301?
How do I fix CVE-2025-40301?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2025
- CVE-2025-40296In the Linux kernel, the following vulnerability has been re…
- CVE-2025-40297In the Linux kernel, the following vulnerability has been re…7.8
- CVE-2025-40298In the Linux kernel, the following vulnerability has been re…
- CVE-2025-40299In the Linux kernel, the following vulnerability has been re…
- CVE-2025-4030A vulnerability was found in PHPGurukul COVID19 Testing Mana…9.8
- CVE-2025-40300In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2025-40302In the Linux kernel, the following vulnerability has been re…7.8
- CVE-2025-40303In the Linux kernel, the following vulnerability has been re…7.8
- CVE-2025-40304In the Linux kernel, the following vulnerability has been re…7.8
- CVE-2025-40305In the Linux kernel, the following vulnerability has been re…
- CVE-2025-40306In the Linux kernel, the following vulnerability has been re…7.8
- CVE-2025-40307In the Linux kernel, the following vulnerability has been re…7.8
Are you affected by CVE-2025-40301?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST