Vulnerability · Published Jul 20, 2025 · Assigned by mitre
CVE-2025-48965
Medium 4.0
In plain English
A medium-severity security flaw in mbedtls from Mbed. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 48% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)4.0Medium
Exploit odds (30 days)0.6%top 52.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Mbed TLS before 3.6.4 has a NULL pointer dereference because mbedtls_asn1_store_named_data can trigger conflicting data with val.p of NULL but val.len greater than zero.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | mbedtls | 3.6.4-r0 | ALPINE-CVE-2025-48965 |
| Alpine:v3.21 | mbedtls | 3.6.4-r0 | ALPINE-CVE-2025-48965 |
| Alpine:v3.22 | mbedtls | 3.6.4-r0 | ALPINE-CVE-2025-48965 |
| Alpine:v3.23 | mbedtls | 3.6.4-r0 | ALPINE-CVE-2025-48965 |
| Alpine:v3.24 | mbedtls | 3.6.4-r0 | ALPINE-CVE-2025-48965 |
| Alpine:v3.24 | mbedtls3 | 3.6.4-r0 | ALPINE-CVE-2025-48965 |
| Debian:12 | mbedtls | no fix listed | DEBIAN-CVE-2025-48965 |
| Debian:13 | mbedtls | 3.6.4-1 | DEBIAN-CVE-2025-48965 |
| Debian:14 | mbedtls | 3.6.4-1 | DEBIAN-CVE-2025-48965 |
| Ubuntu:25.10 | mbedtls | no fix listed | UBUNTU-CVE-2025-48965 |
Affected products (as reported)
Weakness: CWE-696 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L