Search/CVE-2025-21787
● CVE — Medium

CVE-2025-21787

VendorlinuxProductlinux kernelDiscoveredFeb 27, 2025UpdatedMay 12, 2026

In the Linux kernel, the following vulnerability has been resolved: team: better TEAM_OPTION_TYPE_STRING validation syzbot reported following splat [1] Make sure user-provided data contains one nul byte. [1] BUG: KMSAN: uninit-value in string_nocheck lib/vsprintf.c:633 [inline] BUG: KMSAN: uninit-value in string+0x3ec/0x5f0 lib/vsprintf.c:714 string_nocheck lib/vsprintf.c:633 [inline] string+0x3ec/0x5f0 lib/vsprintf.c:714 vsnprintf+0xa5d/0x1960 lib/vsprintf.c:2843 __request_module+0x252/0x9f0 kernel/module/kmod.c:149 team_mode_get drivers/net/team/team_core.c:480 [inline] team_change_mode drivers/net/team/team_core.c:607 [inline] team_mode_option_set+0x437/0x970 drivers/net/team/team_core.c:1401 team_option_set drivers/net/team/team_core.c:375 [inline]…

CVSS v3.1
5.5 MEDIUM
EPSS
0.27%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
3
sources referencing this CVE
Related IOCs
0
seen in the same coverage
EPSS Trend
Aug 16, 2026 → Oct 2, 2026
▲ 0.03pp
0.24% → 0.27% over 4 tracked changes
CVSS v3.1 Detail
Attack VectorLOCAL
Attack ComplexityLOW
Privileges RequiredLOW
User InteractionNONE
ScopeUNCHANGED
ConfidentialityNONE
IntegrityNONE
AvailabilityHIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Connections
5 relationships
Timeline
disclosure → media coverage
Feb 27, 2025
Disclosure — published as a CVE record. · last revised by NVD May 12, 2026
Aug 19, 2025
ubuntu.com reports: USN-7703-1: Linux kernel vulnerabilities
Aug 20, 2025
ubuntu.com reports: USN-7703-2: Linux kernel vulnerabilities
Aug 26, 2025
ubuntu.com reports: USN-7719-1: Linux kernel (Raspberry Pi Real-time) vulnerabilities