Out-of-bounds Read in Arm Mbed_tls
CVE-2022-35409
An issue was discovered in Mbed TLS before 2.28.1 and 3.x before 3.2.0. In some configurations, an unauthenticated attacker can send an invalid ClientHello message to a DTLS server that causes a heap-based buffer over-read of up to 255 byt…
Vulnerability class: Buffer Overflow
EPSS: 0.020 (84.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.
Affected products
- Arm Mbed_tls
- Trustedfirmware Mbed_tls
- Debian Debian_linux — versions 10.0
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Release Notes)
- cve@mitre.org (Exploit, Mitigation, Vendor Advisory)
- cve@mitre.org (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-35409?
- CVE-2022-35409 is a critical-severity vulnerability in Arm Mbed_tls, classified under Out-of-bounds Read. CVSS score: 9.1/10. Published 2022-07-15.
- How severe is CVE-2022-35409?
- Critical severity. CVSS v3 base score is 9.1 out of 10.
- Is CVE-2022-35409 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.