CVE-2025-27810 — Use of Uninitialized Resource in Mbedtls
Severity
4.8MEDIUMNVD
CNA5.4OSV9.8
EPSS
0.1%
top 72.95%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedMar 25
Latest updateMar 25
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:NExploitability: 2.2 | Impact: 2.5
Affected Packages4 packages
🔴Vulnerability Details
4📋Vendor Advisories
3Microsoft▶
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 ↗2025-03-11
Debian▶
CVE-2025-27810: mbedtls - Mbed TLS before 2.28.10 and 3.x before 3.6.3, in some cases of failed memory all...↗2025