MEDIUMCVSS v3.1 5.5Actively exploited · CISA KEV since 2021-11-03Vulnerability
CVE-2021-27562
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.
Properties
- Vulnerability name
- Arm Trusted Firmware Out-of-Bounds Write Vulnerability
- First seen
- 2025-10-21T23:25:45+00:00
- Cvss score
- 5.5
- Epss score
- 0.0306
- Last seen
- 2026-10-19T12:00:27+00:00
- Due date
- 2021-11-17
- Euvd assigner
- mitre
- Retrieved at
- 2026-10-21T01:24:47+00:00
- Exploited euvd since
- 2021-11-03T00:00:00+00:00
- Src batch id
- epss_history-20261020T103617Z-728ddd
- Source url
- https://epss.empiricalsecurity.com/epss_scores-2026-10-19.csv.gz
- Date added
- 2021-11-03
- Score
- 5.5
- Euvd base score version
- 3.1
- Fetched at
- 2026-10-20T10:36:20+00:00
- Cvss vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- In Signal since
- initial import (Sep 2026)
- Euvd base score
- 5.5
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Vendor project
- Arm
Related Entities (4)
AFFECTS_PRODUCT (1)
DESCRIBES (1)
HAS_WEAKNESS (1)
INVOLVES (1)
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