An issue was discovered in Mbed TLS before 2.25.0 (and before 2.16.9 LTS and before 2.7.18 LTS). The calculations performed by mbedtls_mpi_exp_mod are not limited; thus, supplying overly large parameters could lead to denial of service when generating Diffie-Hellman key pairs.
| Reporter | Title | Published | Views | Family All 45 |
|---|---|---|---|---|
 | Astra Linux – Vulnerability in mbedtls | 20 May 202605:53 | – | astralinux |
 | The vulnerability of the mbedtls_mpi_exp_mod function in implementations of TLS and SSL protocols allows a attacker to cause a service failure. | 1 Apr 202200:00 | – | bdu_fstec |
 | ARM mbed TLS 安全漏洞 | 23 Aug 202100:00 | – | cnnvd |
 | ARM mbed TLS denial of service vulnerability | 24 Aug 202100:00 | – | cnvd |
 | CVE-2020-36475 | 23 Aug 202100:00 | – | cve |
 | CVE-2020-36475 | 23 Aug 202100:00 | – | cvelist |
 | [SECURITY] [DLA 2826-1] mbedtls security update | 23 Nov 202113:36 | – | debian |
| [SECURITY] [DLA 3249-1] mbedtls security update | 25 Dec 202223:33 | – | debian |
 | CVE-2020-36475 | 23 Aug 202100:00 | – | debiancve |
 | Debian DLA-2826-1 : mbedtls - LTS security update | 23 Nov 202100:00 | – | nessus |
10
Data
Build on a solid foundation with Vulners data
We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data
Api
Power your application with Vulners API
The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access
App
Assess and manage vulnerabilities with Vulners tools
Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation
03 Sep 2025 22:06Current
7High risk
Vulners AI Score7
CVSS 25
CVSS 3.17.5
EPSS0.0197