CVE-2025-21638: linux kernel from 3.10.41 (inclusive), before 3.11 (exclusive), from 3.12.20 (inclusive), before 3.13 (exclusive)…

Affected technology

linux kernel · from 3.10.41 (inclusive), before 3.11 (exclusive)
linux

linux kernel · from 3.12.20 (inclusive), before 3.13 (exclusive)
linux

linux kernel · from 3.14.5 (inclusive), before 5.4.290 (exclusive)
linux

linux kernel · from 5.5 (inclusive), before 5.10.234 (exclusive)
linux

linux kernel · from 5.11 (inclusive), before 5.15.177 (exclusive)
linux

linux kernel · from 5.16 (inclusive), before 6.1.125 (exclusive)
linux

linux kernel · from 6.2 (inclusive), before 6.6.72 (exclusive)
linux

linux kernel · from 6.7 (inclusive), before 6.12.10 (exclusive)
linux

linux kernel · 6.13 · update rc1
linux

linux kernel · 6.13 · update rc2
linux

linux kernel · 6.13 · update rc3
linux

linux kernel · 6.13 · update rc4
linux

linux kernel · 6.13 · update rc5
linux

linux kernel · 6.13 · update rc6
linux

Linux · b14878ccb7fac0242db82720b784ab62c467c0dc to before cf387cdebfaebae228dfba162f94c567a67610c3, b14878ccb7fac0242db82720b784ab62c467c0dc to before dc583e7e5f8515ca489c0df28e4362a70eade382, b14878ccb7fac0242db82720b784ab62c467c0dc to before bd2a2939423566c654545fa3e96a656662a0af9e, b14878ccb7fac0242db82720b784ab62c467c0dc to before 1b67030d39f2b00f94ac1f0af11ba6657589e4d3, b14878ccb7fac0242db82720b784ab62c467c0dc to before 7ec30c54f339c640aa7e49d7e9f7bbed6bd42bf6, b14878ccb7fac0242db82720b784ab62c467c0dc to before c184bc621e3cef03ac9ba81a50dda2dae6a21d36, b14878ccb7fac0242db82720b784ab62c467c0dc to before 15649fd5415eda664ef35780c2013adeb5d9c695, e5eae4a0511241959498b180fa0df0d4f1b11b9c, 88830f227a1f96e44d82ddfcb0cc81d517ec6dd8, 3938b0336a93fa5faa242dc9e5823ac69df9e066, 3.10.41 to before 3.11, 3.12.21 to before 3.13, 3.14.5 to before 3.15
Linux

Linux · 3.15
Linux

SIMATIC S7-1500 TM MFP - GNU/Linux subsystem · 0 to before *
Siemens

Component: Not specified by the source
File: net/sctp/sysctl.c

Attack conditions (Source advisory, CVSS 3.1): Local · Low privileges required · No user interaction required

Attack conditions (NVD, CVSS 3.1): Local · Low privileges required · No user interaction required

What an attacker can do

Source advisory’s CVSS 3.1 assessment (base score 7.1/10) rates confidentiality impact as none; integrity and availability impact as high. NVD’s CVSS 3.1 assessment (base score 5.5/10) rates confidentiality and integrity impact as none; availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.