CVE-2024-23744: trustedfirmware mbed_tls Uncontrolled Resource Consumption
CVSS: 7.5v3.1HighModified
AliasesUBUNTU-CVE-2024-23744
Published 21-01-2024Last modified 04-06-2025
Vulnerability summary
CVE-2024-23744 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in trustedfirmware mbed_tls. EPSS estimates a 0.69% chance of exploitation in the next 30 days, higher than 51.9% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.5/10
010
High · v3.1 (CVE.org)EPSS score
0.69%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Timeline
- 21-01-2024PublishedVulnerability first disclosed.
- 04-06-2025Last modifiedVulnerability information updated.
Description
An issue was discovered in Mbed TLS 3.5.1. There is persistent handshake denial if a client sends a TLS 1.3 ClientHello without extensions.
CVSS metrics
3 scores · 3 sources · 1 versionHigh 7.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.69%
Chance of exploitation in the next 30 days
Percentile
52%
Versus all other CVEs
30-day change
0.00 pp
From 0.69% on 20-09-2026
20-09-202620-10-2026
EPSS score0.69%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundMbedtls
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Trustedfirmware1 product
- mbed_tls> 3.4.0, ≤ 3.5.1
Ubuntu1 product
- mbedtlsAll versions (No fix recorded)
2 vendors · 2 products