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CVE-2025-49087

Published: Jul 20, 2025Updated: Jun 5, 2026 Sources: CVE List NVD BDUCWE-385
NVD MITRE
4.0CVSSMEDIUM
EPSS Score
0.4%
Top 68.8%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

Description

In Mbed TLS 3.6.1 through 3.6.3 before 3.6.4, a timing discrepancy in block cipher padding removal allows an attacker to recover the plaintext when PKCS#7 padding mode is used.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:CC:LI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-385

Affected Products

mbedtlsMbed
Library
Security Products / pki-crypto
mbed tlstrustedfirmware
On-premSecurity Product
Security Products / pki-crypto
Mbed TLSARM Limited
LibraryLibrary
Security Products / pki-crypto
mbedoss-projectSecurity Productsaka mbedtls
trustedfirmwarecommercialSecurity Productsaka mbed tls, op-tee, trusted firmware-a
arm limitedcommercialGBSecurity Productsaka arm

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

References

https://mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories/
mbed-tls.readthedocs.io
https://github.com/Mbed-TLS/mbedtls-docs/blob/main/security-advisories/mbedtls-security-advisory-2025-06-5.md
github.com

Timeline

Published
Jul 20, 2025
Last Updated
Jun 5, 2026

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