CVE-2026-53236
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
36/100
Published: 2026-06-25
Modified: 2026-11-10
First seen: 2026-11-06
Status: active
Attack Surface
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
Description
In the Linux kernel, the following vulnerability has been resolved: tcp: restrict SO_ATTACH_FILTER to priv users This patch restricts the use of SO_ATTACH_FILTER (cBPF) on TCP sockets to users with CAP_NET_ADMIN capability. This blocks potential side-channel attack where an unprivileged application attaches a filter to leak TCP sequence/acknowledgment numbers.
Affected Software (27)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 3747de241a66ef2c7032d2cc2b826a47c5fa0f6a |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < ecfe9171b26ae3eed0cd8bab7a943e9e2c9e51ba |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 82b3e7ce10c53fc12aab8904745603efc74f8c07 |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < ede69b8f6670600e534591664584f810d7c385f9 |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < c68517a3e18e20997808821c5559d0cba4d776c1 |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 5d39580f68e6ddeedd15e587282207489dfb3da2 |
| Linux | Linux | 2.6.12 |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 3747de241a66ef2c7032d2cc2b826a47c5fa0f6a |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < ecfe9171b26ae3eed0cd8bab7a943e9e2c9e51ba |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 82b3e7ce10c53fc12aab8904745603efc74f8c07 |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < ede69b8f6670600e534591664584f810d7c385f9 |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < c68517a3e18e20997808821c5559d0cba4d776c1 |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 5d39580f68e6ddeedd15e587282207489dfb3da2 |
| Linux | Linux | 2.6.12 |
| linux | linux_kernel | 2.6.12.1 – 6.1.176 |
| linux | linux_kernel | 2.6.12 |
| linux | linux_kernel | 2.6.12 |
| linux | linux_kernel | 2.6.12 |
| linux | linux_kernel | 2.6.12 |
| linux | linux_kernel | 2.6.12 |
| linux | linux_kernel | 7.1 |
| linux | linux_kernel | 7.1 |
| linux | linux_kernel | 7.1 |
| linux | linux_kernel | 7.1 |
| linux | linux_kernel | 7.1 |
| linux | linux_kernel | 7.1 |
| linux | linux_kernel | 7.1 |