CVE-2021-27562 — Arm Trusted Firmware Out-of-Bounds Write Vulnerability
CVE-2021-27562: Arm Trusted Firmware Out-of-Bounds Write Vulnerability
CISA Known Exploited Vulnerability (KEV)
| Vendor / project | Arm |
| Product | Trusted Firmware |
| Date added | 2021-11-03 |
| Due date | 2021-11-17 |
| Ransomware campaign use | Unknown |
Description
Arm Trusted Firmware contains an out-of-bounds write vulnerability allowing the non-secure (NS) world to trigger a system halt, overwrite secure data, or print out secure data when calling secure functions under the non-secure processing environment (NSPE) handler mode. This vulnerability affects Yealink Device Management servers.
Required action (CISA)
Apply updates per vendor instructions.
Notes
https://nvd.nist.gov/vuln/detail/CVE-2021-27562
References
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-27562
- KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog