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Vulnerability record · public intelligence
CVE-2021-27562
MEDIUMCISA KEV

CVE-2021-27562

Published May 25, 2021 · Updated Oct 23, 2026

Severity · CVSSMEDIUM · 5.5
Known exploitationCISA KEV listed
EPSS / likelihood3.06%
QFinch risk score25 / 100

Original summary

Normalized public record · Updated Oct 23, 2026

In Arm Trusted Firmware M through 1.2, the NS world may trigger a system halt, an overwrite of secure data, or the printing out of secure data when calling secure functions under the NSPE handler mode.

Publisher and source text is retained separately from QFinch interpretation.

QFinch assessment

In Arm Trusted Firmware M through 1.2, the NS world may trigger a system halt, an overwrite of secure data, or the printing out of secure data when calling secure functions under the NSPE handler mode.

Evidence: public source records

Affected products

Affected scope reported by the available public evidence
Affected package, product or rangeFix status
Consult the referenced vendor advisory for affected versions.Consult source advisory

Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.

Remediation

Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.

  1. Confirm the affected product and reachable code path exist in your environment.
  2. Apply the vendor-supported patch or mitigation from the primary advisory.
  3. Rescan the exact deployed revision and retain verification evidence.
Review primary references

Evidence coverage

CVEKEVNVDEPSS
SSVC priority
LOW
Confidence
25%
Aliases
None reported

Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.

Sources and record history

  1. developer.arm.com ↗
  2. git.trustedfirmware.org ↗
  3. CISA advisory ↗

Record history

Published May 25, 2021 · Last refreshed Oct 23, 2026