CVE-2020-36476
HIGH
7.5
CVSS Score
Published: August 23, 2021 at 12:00 AM UTC
Updated: June 17, 2026 at 03:15 AM UTC
2 products affected across 2 vendorsDebian Linuxmbed TLS
Using N/A by N/A?
Get instant alerts when new vulnerabilities affect N/A - before attackers find them.
Real-time alertsTrack your software stackFree plan available
Severity
HIGH7.5
Exploit prediction
EPSS 2%
Description
An issue was discovered in Mbed TLS before 2.24.0 (and before 2.16.8 LTS and before 2.7.17 LTS). There is missing zeroization of plaintext buffers in mbedtls_ssl_read to erase unused application data from memory.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 2.7.172.17.0 ≤ v < 2.24.02.8.0 ≤ v < 2.16.8
Affected range stops below 2.16.8, so it looks safe — our inference, not a vendor statement
Affected range stops below 2.24.0, so it looks safe — our inference, not a vendor statement
Affected range stops below 2.7.17, so it looks safe — our inference, not a vendor statement
Debian Linux· Debiandrupal
95%Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (5)
Release NotesThird Party Advisory
Source: [email protected]
https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.8Release NotesThird Party Advisory
Source: [email protected]
https://github.com/ARMmbed/mbedtls/releases/tag/v2.24.0Release NotesThird Party Advisory
Source: [email protected]
https://github.com/ARMmbed/mbedtls/releases/tag/v2.7.17Mailing ListThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2021/11/msg00021.htmlMailing ListThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2022/12/msg00036.htmlCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- HIGH
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-212
Get alerted
Stop reading CVE feeds looking for your own stack
Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.
Free plan, no card