CVE-2025-39977: Linux 5.15; +3 more affected products

Affected technology

Linux · 07d91ef510fb16a2e0ca7453222105835b7ba3b8 to before cb5d19a61274b51b49601214a87af573b43d60fa, 07d91ef510fb16a2e0ca7453222105835b7ba3b8 to before 348736955ed6ca6e99ca24b93b1d3fbfe352c181, 07d91ef510fb16a2e0ca7453222105835b7ba3b8 to before a170b9c0dde83312b8b58ccc91509c7c15711641, 07d91ef510fb16a2e0ca7453222105835b7ba3b8 to before d824b2dbdcfe3c390278dd9652ea526168ef6850, 07d91ef510fb16a2e0ca7453222105835b7ba3b8 to before b549113738e8c751b613118032a724b772aa83f2
Linux

Linux · 5.15
Linux

SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · V3.1.5 to before *
Siemens

SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · V3.1.6 to before *
Siemens

SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · V3.1.7 to before *
Siemens

SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP · V3.1.5 to before *
Siemens

SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP · V3.1.6 to before *
Siemens

SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP · V3.1.7 to before *
Siemens

SIPLUS S7-1500 CPU 1518-4 PN/DP MFP · V3.1.5 to before *
Siemens

SIPLUS S7-1500 CPU 1518-4 PN/DP MFP · V3.1.6 to before *
Siemens

SIPLUS S7-1500 CPU 1518-4 PN/DP MFP · V3.1.7 to before *
Siemens

Component: Not specified by the source
File: kernel/futex/requeue.c

Attack conditions (Source advisory, 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 7.8/10) rates confidentiality, integrity and availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.