Vulnerability details
CVE-2025-40133
Linux Linux
mptcp: Use __sk_dst_get() and dst_dev_rcu() in mptcp_active_enable().
CVSS 3.1
8.1High
Official description
In the Linux kernel, the following vulnerability has been resolved: mptcp: Use __sk_dst_get() and dst_dev_rcu() in mptcp_active_enable(). mptcp_active_enable() is called from subflow_finish_connect(), which is icsk->icsk_af_ops->sk_rx_dst_set() and it's not always under RCU. Using sk_dst_get(sk)->dev could trigger UAF. Let's use __sk_dst_get() and dst_dev_rcu().
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.1High | 3.1 | CVEProject cvelistV5 (CNA) (Linux) | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Linux | Linux | 6.12 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 27069e7cb3d1cea9377069266acf19b9cc5ad0ae ≤ v < ad16235c9d3ef7ec17c109ff39b7504f49d17072 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 27069e7cb3d1cea9377069266acf19b9cc5ad0ae ≤ v < cc976ec9e38bb79409de3261ba1dbb6868e2a53e | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 27069e7cb3d1cea9377069266acf19b9cc5ad0ae ≤ v < 893c49a78d9f85e4b8081b908fb7c407d018106a | CVEProject cvelistV5 (CNA) |
References and advisories
3
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Details
- Published
- 2025-11-12
- Last updated
- 2026-08-05
- State
- Published
- Assigner (CNA)
- Linux
Exploit prediction (EPSS)
0.51%
Probability of exploitation in 30 days
44%
Percentile (among all CVEs)
Weaknesses (CWE)
- —