Vulnerability · Published Mar 25, 2025 · Assigned by mitre
CVE-2025-27810
Medium 5.4
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 0.3% (higher than 22% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.4Medium
Exploit odds (30 days)0.3%top 77.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Mbed TLS before 2.28.10 and 3.x before 3.6.3, in some cases of failed memory allocation or hardware errors, uses uninitialized stack memory to compose the TLS Finished message, potentially leading to authentication bypasses such as replays.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | mbedtls | 3.6.3-r0 | ALPINE-CVE-2025-27810 |
| Alpine:v3.21 | mbedtls | 3.6.3-r0 | ALPINE-CVE-2025-27810 |
| Alpine:v3.22 | mbedtls | 3.6.3-r0 | ALPINE-CVE-2025-27810 |
| Alpine:v3.23 | mbedtls | 3.6.3-r0 | ALPINE-CVE-2025-27810 |
| Alpine:v3.24 | mbedtls | 3.6.3-r0 | ALPINE-CVE-2025-27810 |
| Alpine:v3.21 | mbedtls2 | 2.28.10-r0 | ALPINE-CVE-2025-27810 |
| Alpine:v3.22 | mbedtls2 | 2.28.10-r0 | ALPINE-CVE-2025-27810 |
| Alpine:v3.23 | mbedtls2 | 2.28.10-r0 | ALPINE-CVE-2025-27810 |
| Alpine:v3.24 | mbedtls2 | 2.28.10-r0 | ALPINE-CVE-2025-27810 |
| Alpine:v3.24 | mbedtls3 | 3.6.3-r0 | ALPINE-CVE-2025-27810 |
| Debian:12 | mbedtls | no fix listed | DEBIAN-CVE-2025-27810 |
| Debian:13 | mbedtls | 3.6.3-1 | DEBIAN-CVE-2025-27810 |
| Debian:14 | mbedtls | 3.6.3-1 | DEBIAN-CVE-2025-27810 |
| Ubuntu:25.10 | mbedtls | no fix listed | UBUNTU-CVE-2025-27810 |
Affected products (as reported)
Weakness: CWE-908 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N