Medium severity4.8NVD Advisory· Published Jul 4, 2025· Updated Jun 17, 2026

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Arm/MbedTLS2 versions
cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*range: <3.6.4
- (no CPE)range: <3.6.4
osv-coords
pkg:rpm/opensuse/mbedtls&distro=openSUSE%20Leap%2016.0
Range: < 3.6.6-bp160.1.1
Mbed/mbedtlsv5
Range: 0

Patches

Vulnerability mechanics

References

github.com/Mbed-TLS/mbedtls-docs/blob/main/security-advisories/mbedtls-security-advisory-2025-06-2.mdnvdThird Party Advisory
lists.debian.org/debian-lts-announce/2025/08/msg00013.htmlnvd

News mentions

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cvss	0.312
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000