CVE-2025-27810

Description

Mbed TLS before 2.28.10 and 3.x before 3.6.3, in some cases of failed memory allocation or hardware errors, uses uninitialized stack memory to compose the TLS Finished message, potentially leading to authentication bypasses such as replays.

Category

5.4
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.05%
Affected: Mbed mbedtls
Published at:
Updated at:

References

Link Tags
https://github.com/Mbed-TLS/mbedtls/releases
https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2025-03-2/

Frequently Asked Questions

What is the severity of CVE-2025-27810?
CVE-2025-27810 has been scored as a medium severity vulnerability.
How to fix CVE-2025-27810?
To fix CVE-2025-27810, 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-2025-27810 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-27810 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-27810?
CVE-2025-27810 affects Mbed mbedtls.
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