CVE catalog

CVE-2025-54764

mbedtls: CVE-2025-54764

Severity: Medium · CVSS 4.7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Published: Oct 20, 2025, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.22% · Oct 25, 2026

Mbed TLS before 3.6.5 allows a local timing attack against certain RSA operations, and direct calls to mbedtls_mpi_mod_inv or mbedtls_mpi_gcd.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	mbedtls	sid	`3.6.7-3`	fixed
Debian	mbedtls	forky	`3.6.7-3`	fixed
Debian	mbedtls	trixie	`3.6.6-0.1~deb13u1`	fixed
Debian	mbedtls	bookworm	`2.28.3-1`	vulnerable
Alpine	mbedtls	3.20	`3.6.5-r0`	fixed
Alpine	mbedtls	3.21	`3.6.5-r0`	fixed
Alpine	mbedtls	3.22	`3.6.5-r0`	fixed
Alpine	mbedtls	3.23	`3.6.5-r0`	fixed
Alpine	mbedtls	3.24	`3.6.5-r0`	fixed
Ubuntu	mbedtls	16.04	`2.1.2-1`	vulnerable
Ubuntu	mbedtls	16.04	`2.2.0-1`	vulnerable
Ubuntu	mbedtls	16.04	`2.2.1-1`	vulnerable
Ubuntu	mbedtls	16.04	`2.2.1-2`	vulnerable
Ubuntu	mbedtls	16.04	`2.2.1-2ubuntu0.1`	vulnerable
Ubuntu	mbedtls	16.04	`2.2.1-2ubuntu0.2`	vulnerable
Ubuntu	mbedtls	16.04	`2.2.1-2ubuntu0.3`	vulnerable
Ubuntu	mbedtls	pro	`2.16.2-1`	vulnerable
Ubuntu	mbedtls	pro	`2.16.3-1`	vulnerable
Ubuntu	mbedtls	pro	`2.16.4-1ubuntu2`	vulnerable
Ubuntu	mbedtls	pro	`2.16.4-1ubuntu2+esm1`	vulnerable
Ubuntu	mbedtls	22.04	`2.16.9-0.1ubuntu1`	vulnerable
Ubuntu	mbedtls	22.04	`2.16.11-0.1ubuntu1`	vulnerable
Ubuntu	mbedtls	22.04	`2.16.11-0.3`	vulnerable
Ubuntu	mbedtls	22.04	`2.28.0-1`	vulnerable
Ubuntu	mbedtls	22.04	`2.28.0-1build1`	vulnerable
Ubuntu	mbedtls	24.04	`2.28.3-1`	vulnerable
Ubuntu	mbedtls	24.04	`2.28.6-1ubuntu1`	vulnerable
Ubuntu	mbedtls	24.04	`2.28.7-1ubuntu1`	vulnerable
Ubuntu	mbedtls	24.04	`2.28.7-1.1ubuntu1`	vulnerable
Ubuntu	mbedtls	24.04	`2.28.8-1`	vulnerable
Ubuntu	mbedtls	25.10	`3.6.2-3ubuntu1`	vulnerable
Opensuse	mbedtls	tumbleweed	`3.6.5-1.1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	mbedtls	source	sid	`3.6.5-0.1`	not yet assigned	Not reported	[1118750]
Debian	mbedtls	source	forky	`3.6.5-0.1`	not yet assigned	Not reported	[1118750]
Debian	mbedtls	source	trixie	`3.6.5-0.1~deb13u1`	not yet assigned	Not reported	[1118750]
Debian	mbedtls	source	bookworm	`(unfixed)`	end-of-life	Not reported	[1118750]
Alpine	mbedtls	apk	3.20	`3.6.5-r0`	Not reported	ALPINE-CVE-2025-54764	Not reported
Alpine	mbedtls	apk	3.21	`3.6.5-r0`	Not reported	ALPINE-CVE-2025-54764	Not reported
Alpine	mbedtls	apk	3.22	`3.6.5-r0`	Not reported	ALPINE-CVE-2025-54764	Not reported
Alpine	mbedtls	apk	3.23	`3.6.5-r0`	Not reported	ALPINE-CVE-2025-54764	Not reported
Alpine	mbedtls	apk	3.24	`3.6.5-r0`	Not reported	ALPINE-CVE-2025-54764	Not reported
Opensuse	mbedtls	rpm	tumbleweed	`3.6.5-1.1`	Not reported	OPENSUSE-SU-2025:15747-1	Not reported

[Debian bug #1118750]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[libmbedcrypto7]Affected
Source package: [mbedtls]
Details (2)
- 2.28.3-1 · amd64 · bookworm
  Affected
  dsa · mbedtls · debian · bookworm; dsa · mbedtls · debian · 12
- 2.28.3-1 · arm64 · bookworm
  Affected
  dsa · mbedtls · debian · bookworm; dsa · mbedtls · debian · 12
[libmbedtls14]Affected
Source package: [mbedtls]
Details (2)
- 2.28.3-1 · amd64 · bookworm
  Affected
  dsa · mbedtls · debian · bookworm; dsa · mbedtls · debian · 12
- 2.28.3-1 · arm64 · bookworm
  Affected
  dsa · mbedtls · debian · bookworm; dsa · mbedtls · debian · 12
[libmbedtls-dev]Affected
Source package: [mbedtls]
Details (2)
- 2.28.3-1 · amd64 · bookworm
  Affected
  dsa · mbedtls · debian · bookworm; dsa · mbedtls · debian · 12
- 2.28.3-1 · arm64 · bookworm
  Affected
  dsa · mbedtls · debian · bookworm; dsa · mbedtls · debian · 12
[libmbedtls-doc]Affected
Source package: [mbedtls]
Details (2)
- 2.28.3-1 · all · bookworm
  Affected
  dsa · mbedtls · debian · bookworm; dsa · mbedtls · debian · 12
- 2.28.3-1 · all · bookworm
  Affected
  dsa · mbedtls · debian · bookworm; dsa · mbedtls · debian · 12
[libmbedx509-1]Affected
Source package: [mbedtls]
Details (2)
- 2.28.3-1 · amd64 · bookworm
  Affected
  dsa · mbedtls · debian · bookworm; dsa · mbedtls · debian · 12
- 2.28.3-1 · arm64 · bookworm
  Affected
  dsa · mbedtls · debian · bookworm; dsa · mbedtls · debian · 12

[openSUSE Tumbleweed]

[libmbedtls23]Unknown
Source package: [mbedtls]
Details (1)
- 4.2.0-1.2 · x86_64 · tumbleweed
  Unknown · Fixed: 3.6.5-1.1
  Version impact unknown
  dsa · mbedtls · opensuse · tumbleweed
[libmbedtls23-x86-64-v3]Unknown
Source package: [mbedtls]
Details (1)
- 4.2.0-1.2 · x86_64 · tumbleweed
  Unknown · Fixed: 3.6.5-1.1
  Version impact unknown
  dsa · mbedtls · opensuse · tumbleweed
[libmbedx509-9]Unknown
Source package: [mbedtls]
Details (1)
- 4.2.0-1.2 · x86_64 · tumbleweed
  Unknown · Fixed: 3.6.5-1.1
  Version impact unknown
  dsa · mbedtls · opensuse · tumbleweed
[libmbedx509-9-x86-64-v3]Unknown
Source package: [mbedtls]
Details (1)
- 4.2.0-1.2 · x86_64 · tumbleweed
  Unknown · Fixed: 3.6.5-1.1
  Version impact unknown
  dsa · mbedtls · opensuse · tumbleweed
[libtfpsacrypto2]Unknown
Source package: [mbedtls]
Details (1)
- 4.2.0-1.2 · x86_64 · tumbleweed
  Unknown · Fixed: 3.6.5-1.1
  Version impact unknown
  dsa · mbedtls · opensuse · tumbleweed
[libtfpsacrypto2-x86-64-v3]Unknown
Source package: [mbedtls]
Details (1)
- 4.2.0-1.2 · x86_64 · tumbleweed
  Unknown · Fixed: 3.6.5-1.1
  Version impact unknown
  dsa · mbedtls · opensuse · tumbleweed
[mbedtls-devel]Unknown
Source package: [mbedtls]
Details (1)
- 4.2.0-1.2 · x86_64 · tumbleweed
  Unknown · Fixed: 3.6.5-1.1
  Version impact unknown
  dsa · mbedtls · opensuse · tumbleweed

[Debian 13 (Trixie)]

[libmbedcrypto16]Fixed
Source package: [mbedtls]
Details (2)
- 3.6.5-0.1~deb13u1 · amd64 · trixie
  Fixed · Fixed: 3.6.5-0.1~deb13u1
  dsa · mbedtls · debian · 13
- 3.6.5-0.1~deb13u1 · arm64 · trixie
  Fixed · Fixed: 3.6.5-0.1~deb13u1
  dsa · mbedtls · debian · 13
[libmbedtls21]Fixed
Source package: [mbedtls]
Details (2)
- 3.6.5-0.1~deb13u1 · amd64 · trixie
  Fixed · Fixed: 3.6.5-0.1~deb13u1
  dsa · mbedtls · debian · 13
- 3.6.5-0.1~deb13u1 · arm64 · trixie
  Fixed · Fixed: 3.6.5-0.1~deb13u1
  dsa · mbedtls · debian · 13
[libmbedtls-dev]Fixed
Source package: [mbedtls]
Details (2)
- 3.6.5-0.1~deb13u1 · amd64 · trixie
  Fixed · Fixed: 3.6.5-0.1~deb13u1
  dsa · mbedtls · debian · 13
- 3.6.5-0.1~deb13u1 · arm64 · trixie
  Fixed · Fixed: 3.6.5-0.1~deb13u1
  dsa · mbedtls · debian · 13
[libmbedtls-doc]Fixed
Source package: [mbedtls]
Details (2)
- 3.6.5-0.1~deb13u1 · all · trixie
  Fixed · Fixed: 3.6.5-0.1~deb13u1
  dsa · mbedtls · debian · 13
- 3.6.5-0.1~deb13u1 · all · trixie
  Fixed · Fixed: 3.6.5-0.1~deb13u1
  dsa · mbedtls · debian · 13
[libmbedx509-7]Fixed
Source package: [mbedtls]
Details (2)
- 3.6.5-0.1~deb13u1 · amd64 · trixie
  Fixed · Fixed: 3.6.5-0.1~deb13u1
  dsa · mbedtls · debian · 13
- 3.6.5-0.1~deb13u1 · arm64 · trixie
  Fixed · Fixed: 3.6.5-0.1~deb13u1
  dsa · mbedtls · debian · 13

Observed: Oct 24, 2026, 5:13:00 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]