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CVE-2025-52497

Published: Jul 4, 2025Updated: Nov 3, 2025 Sources: CVE List NVD BDUCWE-193
NVD MITRE
4.8CVSSMEDIUM
EPSS Score
0.3%
Top 80.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:LI:NA:L
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:NIntegrity
None
A:LAvailability
Low
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Weaknesses

CWE-193

Affected Products

mbed tlsarmOSS Libraries
mbedtlsMbed
Library
Security Products / pki-crypto
Mbed TLSARM Limited
LibraryLibrary
Security Products / pki-crypto
armoss-projectGBOSS Librariesaka arm ltd
mbedoss-projectSecurity Productsaka mbedtls
arm limitedcommercialGBSecurity Productsaka arm

Exploitability

Official Patch Available

References

https://github.com/Mbed-TLS/mbedtls-docs/blob/main/security-advisories/mbedtls-security-advisory-2025-06-2.md
github.com
https://lists.debian.org/debian-lts-announce/2025/08/msg00013.html
lists.debian.org

Timeline

Published
Jul 4, 2025
Last Updated
Nov 3, 2025

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