CVE-2026-46125: linux Use After Free
Vulnerability summary
CVE-2026-46125 is a high (CVSS 8.8) Use After Free vulnerability in linux. EPSS estimates a 0.44% chance of exploitation in the next 30 days, higher than 37% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 48 · Related 38Timeline
- 28-05-2026PublishedVulnerability first disclosed.
- 19-10-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: remove station if connection prep fails If connection preparation fails for MLO connections, then the interface is completely reset to non-MLD. In this case, we must not keep the station since it's related to the link of the vif being removed. Delete an existing station. Any "new_sta" is already being removed, so that doesn't need changes. This fixes a use-after-free/double-free in debugfs if that's enabled, because a vif going from MLD (and to MLD, but that's not relevant here) recreates its entire debugfs.
CVSS metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated6.8MediumCVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HDiffers
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVDNIST8.8HighCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.44%
Chance of exploitation in the next 30 days
Percentile
37%
Versus all other CVEs
30-day change
+0.14 pp
From 0.30% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-416Use After FreeThe product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
- CWE-825Expired Pointer DereferenceThe product dereferences a pointer that contains a location for memory that was previously valid, but is no longer valid.
Affected systems
Ubuntu139 products
- linux< 6.8.0-136.136 | All versions (No fix recorded) | < 7.0.0-28.28
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 6.8.0-1061.64 | All versions (No fix recorded) | < 7.0.0-1009.9
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 81151ce462e533551f3284bfdb8e0f461c9220e6, < 18fed0a209500bfea5c4c08609ec93855e4e500b | ≥ 81151ce462e533551f3284bfdb8e0f461c9220e6, < fe75fa1ac9a92990f7fc3d34b17808fd933071b2 | ≥ 81151ce462e533551f3284bfdb8e0f461c9220e6, < afcbaed89cdc1a001b43270cbf5394bb4804270a | ≥ 81151ce462e533551f3284bfdb8e0f461c9220e6, < 9e28654f79f443bca9b29ff3ae7cf18abfba58a0 | ≥ 81151ce462e533551f3284bfdb8e0f461c9220e6, < 1c2b72ea89882aeb948340498391e69c58d466f1 | ≥ 81151ce462e533551f3284bfdb8e0f461c9220e6, < 283fc9e44ff5b5ac967439b4951b80bd4299f4e4 | 6.0
- linux_kernel≥ 6.0, < 6.1.176 | ≥ 6.2, < 6.6.140 | ≥ 6.7, < 6.12.88 | ≥ 6.13, < 6.18.30 | ≥ 6.19, < 7.0.7 | 7.1:rc1 | 7.1:rc2
Debian1 product
- linux< 6.1.176-1 | < 6.12.88-1 | < 7.0.7-1
3 vendors · 142 products
