What is CVE-2025-21845?

CVE-2025-21845 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2025-03-12.

How severe is CVE-2025-21845?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Is CVE-2025-21845 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Linux

CVE-2025-21845

In the Linux kernel, the following vulnerability has been resolved: mtd: spi-nor: sst: Fix SST write failure 'commit 18bcb4aa54ea ("mtd: spi-nor: sst: Factor out common write operation to `sst_nor_write_data()`")' introduced a bug where…

EPSS: 0.002 (14.6th 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 6.14, 6.13.5, b7cd63d13faef7ca5cf31ffa45ebf08829e4c9a7
Linux Linux_kernel — versions 6.14

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

Frequently asked questions

What is CVE-2025-21845?: CVE-2025-21845 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2025-03-12.
How severe is CVE-2025-21845?: Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2025-21845 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.