Catalogue CVE

CVE-2025-49601

mbedtls affected and fixed versions

In MbedTLS 3.3.0 before 3.6.4, mbedtls_lms_import_public_key does not check that the input buffer is at least 4 bytes before reading a 32-bit field, allowing a possible out-of-bounds read on truncated input. Specifically, an out-of-bounds read in mbedtls_lms_import_public_key allows context-dependent attackers to trigger a crash or limited adjacent-memory disclosure by supplying a truncated LMS (Leighton-Micali Signature) public-key buffer under four bytes. An LMS public key starts with a 4-byte type indicator. The function mbedtls_lms_import_public_key reads this type indicator before validating the size of its input.

Gravité: Medium · CVSS 6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
Published: Jul 4, 2025, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.32% · Oct 27, 2026

Projects and upstream resources

[mbedtls][Source-reported homepage]

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Distribution / release	Package	Version	Status	Source
Debiantrixie	mbedtls	`3.6.4-1`	FixedDistribution-reported fixed boundary	[CVE-2025-49601]
Debiantrixie	mbedtls	`3.6.6-0.1~deb13u1`	Fixed	[CVE-2025-49601]
Debiansid	mbedtls	`3.6.4-1`	FixedDistribution-reported fixed boundary	[CVE-2025-49601]
Debiansid	mbedtls	`3.6.7-3`	Fixed	[CVE-2025-49601]
Debianforky	mbedtls	`3.6.4-1`	FixedDistribution-reported fixed boundary	[CVE-2025-49601]
Debianforky	mbedtls	`3.6.7-3`	Fixed	[CVE-2025-49601]

Showing 6 fix observations. All 18 observations, including unknown and conflicting reports, are available below.

Provider details and historical evidence

Distribution / release	Package	Version	Status	Source
UnknownRelease not reported	mbedtls	Not reported	UnknownSource applicability is not established	Provider not reported
Alpine3.20	mbedtls	`3.6.4-r0`	UnknownSource applicability is not established	[ALPINE-CVE-2025-49601]Aug 27, 2026, 10:18:02 PM UTC
Alpine3.21	mbedtls	`3.6.4-r0`	UnknownSource applicability is not established	[ALPINE-CVE-2025-49601]Aug 27, 2026, 10:18:02 PM UTC
Alpine3.22	mbedtls	`3.6.4-r0`	UnknownSource applicability is not established	[ALPINE-CVE-2025-49601]Aug 27, 2026, 10:18:02 PM UTC
Alpine3.23	mbedtls	`3.6.4-r0`	UnknownSource applicability is not established	[ALPINE-CVE-2025-49601]Aug 27, 2026, 10:18:02 PM UTC
Alpine3.24	mbedtls	`3.6.4-r0`	UnknownSource applicability is not established	[ALPINE-CVE-2025-49601]Aug 27, 2026, 10:18:02 PM UTC
Debianbookworm	mbedtls	Not reported	Not affectedDistribution reports not affected	[CVE-2025-49601]
Debianbookworm	mbedtls	`2.28.3-1`	Not affected	[CVE-2025-49601]
Debianforky	mbedtls	`3.6.4-1`	FixedDistribution-reported fixed boundary	[CVE-2025-49601]
Debianforky	mbedtls	`3.6.7-3`	Fixed	[CVE-2025-49601]
Debiansid	mbedtls	`3.6.4-1`	FixedDistribution-reported fixed boundary	[CVE-2025-49601]
Debiansid	mbedtls	`3.6.7-3`	Fixed	[CVE-2025-49601]
Debiantrixie	mbedtls	`3.6.4-1`	FixedDistribution-reported fixed boundary	[CVE-2025-49601]
Debiantrixie	mbedtls	`3.6.6-0.1~deb13u1`	Fixed	[CVE-2025-49601]
Ubuntu25.10	mbedtls	`3.6.2-3ubuntu1`	UnknownSource applicability is not established	[UBUNTU-CVE-2025-49601]May 20, 2026, 4:23:32 PM UTC
Ubuntu26.04	mbedtls	`3.6.2-3ubuntu1`	UnknownSource applicability is not established	[UBUNTU-CVE-2025-49601]May 20, 2026, 4:23:32 PM UTC
Ubuntu26.04	mbedtls	`3.6.5-0.1ubuntu1`	UnknownSource applicability is not established	[UBUNTU-CVE-2025-49601]May 20, 2026, 4:23:32 PM UTC
Ubuntu26.04	mbedtls	`3.6.5-0.1ubuntu2`	UnknownSource applicability is not established	[UBUNTU-CVE-2025-49601]May 20, 2026, 4:23:32 PM UTC

Original provider fields

{
  "package_releases": [
    {
      "name": "mbedtls",
      "status": "fixed",
      "release": "sid",
      "version": "3.6.7-3"
    },
    {
      "name": "mbedtls",
      "status": "fixed",
      "release": "forky",
      "version": "3.6.7-3"
    },
    {
      "name": "mbedtls",
      "status": "fixed",
      "release": "trixie",
      "version": "3.6.6-0.1~deb13u1"
    },
    {
      "name": "mbedtls",
      "status": "not affected",
      "release": "bookworm",
      "version": "2.28.3-1"
    }
  ],
  "fixed_versions": [
    {
      "bug": 1108788,
      "name": "mbedtls",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "not yet assigned",
      "fixed_version": "3.6.4-1"
    },
    {
      "bug": 1108788,
      "name": "mbedtls",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "not yet assigned",
      "fixed_version": "3.6.4-1"
    },
    {
      "bug": 1108788,
      "name": "mbedtls",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "not yet assigned",
      "fixed_version": "3.6.4-1"
    },
    {
      "bug": 1108788,
      "name": "mbedtls",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "unimportant",
      "fixed_version": "0"
    }
  ],
  "distribution_packages": [
    {
      "name": "mbedtls",
      "fixed_version": "0",
      "applicability_unknown": true
    },
    {
      "name": "mbedtls",
      "distro": "alpine",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.6.4-r0"
            }
          ]
        }
      ],
      "release": "3.20",
      "versions": [],
      "ecosystem": "apk",
      "provider_url": "https://osv.dev/vulnerability/ALPINE-CVE-2025-49601",
      "fixed_version": "3.6.4-r0",
      "provider_source": "pypi",
      "provider_record_id": "ALPINE-CVE-2025-49601",
      "provider_updated_at": "2026-08-27T22:18:02.988123494Z",
      "applicability_unknown": true
    },
    {
      "name": "mbedtls",
      "distro": "alpine",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.6.4-r0"
            }
          ]
        }
      ],
      "release": "3.21",
      "versions": [],
      "ecosystem": "apk",
      "provider_url": "https://osv.dev/vulnerability/ALPINE-CVE-2025-49601",
      "fixed_version": "3.6.4-r0",
      "provider_source": "pypi",
      "provider_record_id": "ALPINE-CVE-2025-49601",
      "provider_updated_at": "2026-08-27T22:18:02.988123494Z",
      "applicability_unknown": true
    },
    {
      "name": "mbedtls",
      "distro": "alpine",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.6.4-r0"
            }
          ]
        }
      ],
      "release": "3.22",
      "versions": [],
      "ecosystem": "apk",
      "provider_url": "https://osv.dev/vulnerability/ALPINE-CVE-2025-49601",
      "fixed_version": "3.6.4-r0",
      "provider_source": "pypi",
      "provider_record_id": "ALPINE-CVE-2025-49601",
      "provider_updated_at": "2026-08-27T22:18:02.988123494Z",
      "applicability_unknown": true
    },
    {
      "name": "mbedtls",
      "distro": "alpine",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.6.4-r0"
            }
          ]
        }
      ],
      "release": "3.23",
      "versions": [],
      "ecosystem": "apk",
      "provider_url": "https://osv.dev/vulnerability/ALPINE-CVE-2025-49601",
      "fixed_version": "3.6.4-r0",
      "provider_source": "pypi",
      "provider_record_id": "ALPINE-CVE-2025-49601",
      "provider_updated_at": "2026-08-27T22:18:02.988123494Z",
      "applicability_unknown": true
    },
    {
      "name": "mbedtls",
      "distro": "alpine",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.6.4-r0"
            }
          ]
        }
      ],
      "release": "3.24",
      "versions": [],
      "ecosystem": "apk",
      "provider_url": "https://osv.dev/vulnerability/ALPINE-CVE-2025-49601",
      "fixed_version": "3.6.4-r0",
      "provider_source": "pypi",
      "provider_record_id": "ALPINE-CVE-2025-49601",
      "provider_updated_at": "2026-08-27T22:18:02.988123494Z",
      "applicability_unknown": true
    },
    {
      "name": "mbedtls",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "25.10",
      "versions": [
        "3.6.2-3ubuntu1"
      ],
      "ecosystem": "deb",
      "provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2025-49601",
      "fixed_version": "",
      "provider_source": "pypi",
      "provider_record_id": "UBUNTU-CVE-2025-49601",
      "provider_updated_at": "2026-05-20T16:23:32.804422293Z",
      "applicability_unknown": true
    },
    {
      "name": "mbedtls",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "26.04",
      "versions": [
        "3.6.2-3ubuntu1",
        "3.6.5-0.1ubuntu1",
        "3.6.5-0.1ubuntu2"
      ],
      "ecosystem": "deb",
      "provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2025-49601",
      "fixed_version": "",
      "provider_source": "pypi",
      "provider_record_id": "UBUNTU-CVE-2025-49601",
      "provider_updated_at": "2026-05-20T16:23:32.804422293Z",
      "applicability_unknown": true
    }
  ]
}

[Debian bug #1108788]

OpenFactory catalog packages

L’association des paquets est en cours.

[Debian 12 (Bookworm)]

[libmbedcrypto7]Inconnu
Paquet source: [mbedtls]
Détails (2)
- 2.28.3-1 · amd64 · bookworm
  Non affectée
  dsa · mbedtls · debian · bookworm
- 2.28.3-1 · arm64 · bookworm
  Non affectée
  dsa · mbedtls · debian · bookworm
[libmbedtls14]Inconnu
Paquet source: [mbedtls]
Détails (2)
- 2.28.3-1 · amd64 · bookworm
  Non affectée
  dsa · mbedtls · debian · bookworm
- 2.28.3-1 · arm64 · bookworm
  Non affectée
  dsa · mbedtls · debian · bookworm
[libmbedtls-dev]Inconnu
Paquet source: [mbedtls]
Détails (2)
- 2.28.3-1 · amd64 · bookworm
  Non affectée
  dsa · mbedtls · debian · bookworm
- 2.28.3-1 · arm64 · bookworm
  Non affectée
  dsa · mbedtls · debian · bookworm
[libmbedtls-doc]Inconnu
Paquet source: [mbedtls]
Détails (2)
- 2.28.3-1 · all · bookworm
  Non affectée
  dsa · mbedtls · debian · bookworm
- 2.28.3-1 · all · bookworm
  Non affectée
  dsa · mbedtls · debian · bookworm
[libmbedx509-1]Inconnu
Paquet source: [mbedtls]
Détails (2)
- 2.28.3-1 · amd64 · bookworm
  Non affectée
  dsa · mbedtls · debian · bookworm
- 2.28.3-1 · arm64 · bookworm
  Non affectée
  dsa · mbedtls · debian · bookworm

[Debian 13 (Trixie)]

[libmbedcrypto16]Inconnu
Paquet source: [mbedtls]
Détails (2)
- 3.6.5-0.1~deb13u1 · amd64 · trixie
  Corrigée · Corrigée: 3.6.4-1
  dsa · mbedtls · debian · 13
- 3.6.5-0.1~deb13u1 · arm64 · trixie
  Corrigée · Corrigée: 3.6.4-1
  dsa · mbedtls · debian · 13
[libmbedtls21]Inconnu
Paquet source: [mbedtls]
Détails (2)
- 3.6.5-0.1~deb13u1 · amd64 · trixie
  Corrigée · Corrigée: 3.6.4-1
  dsa · mbedtls · debian · 13
- 3.6.5-0.1~deb13u1 · arm64 · trixie
  Corrigée · Corrigée: 3.6.4-1
  dsa · mbedtls · debian · 13
[libmbedtls-dev]Inconnu
Paquet source: [mbedtls]
Détails (2)
- 3.6.5-0.1~deb13u1 · amd64 · trixie
  Corrigée · Corrigée: 3.6.4-1
  dsa · mbedtls · debian · 13
- 3.6.5-0.1~deb13u1 · arm64 · trixie
  Corrigée · Corrigée: 3.6.4-1
  dsa · mbedtls · debian · 13
[libmbedtls-doc]Inconnu
Paquet source: [mbedtls]
Détails (2)
- 3.6.5-0.1~deb13u1 · all · trixie
  Corrigée · Corrigée: 3.6.4-1
  dsa · mbedtls · debian · 13
- 3.6.5-0.1~deb13u1 · all · trixie
  Corrigée · Corrigée: 3.6.4-1
  dsa · mbedtls · debian · 13
[libmbedx509-7]Inconnu
Paquet source: [mbedtls]
Détails (2)
- 3.6.5-0.1~deb13u1 · amd64 · trixie
  Corrigée · Corrigée: 3.6.4-1
  dsa · mbedtls · debian · 13
- 3.6.5-0.1~deb13u1 · arm64 · trixie
  Corrigée · Corrigée: 3.6.4-1
  dsa · mbedtls · debian · 13

Observé: Oct 24, 2026, 9:16:53 PM UTC

Références

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