CVE-2021-27562

unknown KEV

Published 2021-11-03 · Modified 2021-11-03

CVSS v3

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CVSS v2

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VIR risk

1.5

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.

CISA KEV

Vendor: Arm
Product: Trusted Firmware
Due date: 2021-11-17

Predictions

Exploit likelihood

99%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: cisa-kev — https://nvd.nist.gov/vuln/detail/CVE-2021-27562

Exploits

References

https://nvd.nist.gov/vuln/detail/CVE-2021-27562

Verify integrity in audit chain (admin only). AS-IS.