CVE-2021-27562 · netVigilance record NV21-0229
Arm Trusted Firmware Out-of-Bounds Write
past due
What to do
Apply updates per vendor instructions.
CISA deadline 2021-11-17 · passed 4 years 9 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA
What happened
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.
Who is affected
Arm Trusted Firmware. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.
Weakness class: CWE-787.
Timeline
- Added to CISA KEVExploitation in the wild confirmed by CISA
- CISA remediation deadlinepassed 4 years 9 months ago
Sources
- NVD entry for CVE-2021-27562 nvd.nist.gov/vuln/detail/CVE-2021-27562
- CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
- nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2021-27562