CVE-2021-27562

medium

Description

In Arm Trusted Firmware M through 1.2, the NS world may trigger a system halt, an overwrite of secure data, or the printing out of secure data when calling secure functions under the NSPE handler mode.

References

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-27562

https://git.trustedfirmware.org/TF-M/trusted-firmware-m.git/tree/docs/security/security_advisories/svc_caller_sp_fetching_vulnerability.rst

https://euvd.enisa.europa.eu/vulnerability/EUVD-2021-14313

https://developer.arm.com/support/arm-security-updates

Details

Source: Mitre, NVD

Published: 2021-05-25

Updated: 2026-06-17

Known Exploited Vulnerability (KEV)

Risk Information

CVSS v2

Base Score: 4.9

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H