NULL pointer dereference in Linux
CVE-2025-21798
In the Linux kernel, the following vulnerability has been resolved: firewire: test: Fix potential null dereference in firewire kunit test kunit_kzalloc() may return a NULL pointer, dereferencing it without NULL check may lead to NULL dereference. Add a NULL check for test_state.
EPSS: 0.002 (11.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Linux — versions 1c8506d62624fbc57db75414a387f365da8422e9, 6.8, 0
- Linux Linux_kernel
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2025-21798?
- CVE-2025-21798 is a medium-severity vulnerability in Linux, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2025-02-27.
- How severe is CVE-2025-21798?
- Medium severity. CVSS v3 base score is 5.5 out of 10.