High severity · published Oct 7, 2023
CVE-2023-43615
Mbed TLS 2.x before 2.28.5 and 3.x before 3.5.0 has a Buffer Overflow
7.5
CVSS
0.9%
EPSS
No
On KEV
Description
Mbed TLS 2.x before 2.28.5 and 3.x before 3.5.0 has a Buffer Overflow.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 61% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FE
Fedora · Fedoraproject
37; 38; 39 · source: NVD
MT
Mbed Tls · Arm
2.0.0 before 2.28.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-43615
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-43615
Mailing List
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BDSHAANRULB57GVS5B3DZHXL5KCC7OWQ/
Mailing List
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GGRB5MO2KUJKYPMGXMIZH2WRH6QR5UZS/
Mailing List
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/O7SB7L6A56QZALDTOZ6O4X7PTC4I647R/
Mitigation
https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2023-10-1/
More from Mbed Tls
9.8
CVE-2026-34877
An issue was discovered in Mbed TLS versions from 2.19.0 up to 3.6.5, Mbed TLS 4.0.0
9.8
CVE-2025-47917
Mbed TLS before 3.6.4 allows a use-after-free in certain situations of applications that are developed in accordance with the documentation
9.8
CVE-2022-46393
An issue was discovered in Mbed TLS before 2.28.2 and 3.x before 3.3.0
9.8
CVE-2021-44732
Mbed TLS before 3.0.1 has a double free in certain out-of-memory conditions, as demonstrated by an mbedtls_ssl_set_session() failure
9.8
CVE-2017-18187
In ARM mbed TLS before 2.7.0, there is a bounds-check bypass through an integer overflow in PSK identity parsing in the ssl_parse_client_psk_identity() function in…