CVE-2025-59438
mbedtls: Mbed TLS through 3.6.4 has an Observable Timing Discrepancy.
CVE-2025-59438 is fixed in 4 products on 1 platform, first by DEBIAN-CVE-2025-59438, released October 21, 2025. It is not reported as exploited. Patch Radar priority: Routine.
Routine
CVSS
5.3
medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0026
18th percentile
Mbed TLS through 3.6.4 has an Observable Timing Discrepancy.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| mbedtls · Debian 13.5 (trixie) | 3.6.5-0.1~deb13u1 | DEBIAN-CVE-2025-59438 | Oct 21, 2025 |
| mbedtls · Debian 14 | 3.6.5-0.1 | DEBIAN-CVE-2025-59438 | Oct 21, 2025 |
| mbedtls · opensuse-leap 16.0 | 3.6.6-bp160.1.1 | OPENSUSE-SU-2026:21144-1 | Jun 22, 2026 |
| mbedtls-2 · opensuse-leap 16.0 | 2.28.10-bp160.2.1 | OPENSUSE-SU-2026:21864-1 | Sep 16, 2026 |
| micropython · opensuse-leap 16.0 | 1.26.0-bp160.1.1 | OPENSUSE-SU-2025:20035-1 | Nov 10, 2025 |
| ovmf · opensuse-leap 16.0 | 202502-160000.4.1 | OPENSUSE-SU-2026:20499-1 | Apr 9, 2026 |
| ovmf · sles 15.7 | 202408-150700.3.15.1 | SUSE-SU-2026:1413-1 | Apr 16, 2026 |
| ovmf · sles 16.0 | 202502-160000.4.1 | SUSE-SU-2026:21161-1 | Apr 9, 2026 |
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