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CVE-2021-27562Arm Trusted Firmware Out-of-Bounds Write Vulnerability
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.
5.5 MEDIUMEPSS 3.06%⚡ Known Exploited (CISA KEV)NVD: Analyzed
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 5.5 | MEDIUM | 3.1NVD | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| 4.9 | MEDIUM | 2.0NVD | AV:L/AC:L/Au:N/C:N/I:N/A:C |
CISA required action
⚡ Known exploited · remediation due Nov 17, 2021
Apply updates per vendor instructions.
Details
- CVE ID
- CVE-2021-27562
- Status
- Analyzed
- Assigner (CNA)
- mitre
- Published
- May 25, 2021
- Last modified
- 2026-06-17 03:45 UTC
- Weaknesses
Affected Products
From NVD CPE configurations.
trustedfirmwaretrusted firmware-m1 version range
- through 1.2.0
References
- developer.arm.com https://developer.arm.com/support/arm-security-updates
- git.trustedfirmware.org https://git.trustedfirmware.org/TF-M/trusted-firmware-m.git/tree/docs/security/security_advisories/svc_caller_sp_fetching_vulnerability.rst
- cisa.gov https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-27562