All vulnerabilities
CVE-2021-27562

Arm Trusted Firmware Out-of-Bounds Write Vulnerability

Arm Trusted Firmware
Open in ThreatlineRecord JSON
CVSS
5.5Medium
ExploitationExploited in the wildAdded to KEV 3 Nov 2021CISA KEV
Exploit odds (EPSS)3.06%Chance of exploitation activity in the next 30 days, higher than 87% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Federal deadline17 Nov 2021Remediation due date for US federal agenciesCISA KEV
CISA required actionApply updates per vendor instructions. CISA KEV

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Timeline

  1. 25 May 2021, 18:27 UTCPublishedCVE List
  2. 3 Nov 2021Added to CISA KEVCISA KEV

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.

Text from CVE List

Affected versions 1

  • n/aaffected: n/aCVE List

References 4