CVE-2025-52497

Description

Mbed TLS before 3.6.4 has a PEM parsing one-byte heap-based buffer underflow, in mbedtls_pem_read_buffer and two mbedtls_pk_parse functions, via untrusted PEM input.

Category

4.8
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.04%
Third-Party Advisory github.com
Affected: Mbed mbedtls
Published at:
Updated at:

References

Link Tags
https://github.com/Mbed-TLS/mbedtls-docs/blob/main/security-advisories/mbedtls-security-advisory-2025-06-2.md third party advisory

Frequently Asked Questions

What is the severity of CVE-2025-52497?
CVE-2025-52497 has been scored as a medium severity vulnerability.
How to fix CVE-2025-52497?
To fix CVE-2025-52497, 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-2025-52497 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-52497 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-2025-52497?
CVE-2025-52497 affects Mbed mbedtls.
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