CVE-2021-27562

Known Exploited

Description

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.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 79.19% Top 5%
KEV Since 
Vendor Advisory arm.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://developer.arm.com/support/arm-security-updates vendor advisory
https://git.trustedfirmware.org/TF-M/trusted-firmware-m.git/tree/docs/security/security_advisories/svc_caller_sp_fetching_vulnerability.rst third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-27562?
CVE-2021-27562 has been scored as a medium severity vulnerability.
How to fix CVE-2021-27562?
To fix CVE-2021-27562, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-27562 being actively exploited in the wild?
It is confirmed that CVE-2021-27562 is actively exploited. Be extra cautious if you are using vulnerable components. According to its EPSS score, there is a ~79% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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