CVE-2022-46393

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Summary

CVECVE-2022-46393
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-12-15 23:15:10 UTC
Updated2026-06-05 19:38:32 UTC
DescriptionAn issue was discovered in Mbed TLS before 2.28.2 and 3.x before 3.3.0. There is a potential heap-based buffer overflow and heap-based buffer over-read in DTLS if MBEDTLS_SSL_DTLS_CONNECTION_ID is enabled and MBEDTLS_SSL_CID_IN_LEN_MAX > 2 * MBEDTLS_SSL_CID_OUT_LEN_MAX.

Risk And Classification

Primary CVSS: v3.1 9.8 CRITICAL from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.009250000 probability, percentile 0.764750000 (date 2026-06-11)

Problem Types: CWE-125 | CWE-787 | n/a | CWE-125 CWE-125 Out-of-bounds Read | CWE-787 CWE-787 Out-of-bounds Write

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1ADPDECLARED9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Arm Mbed Tls All All All All
Operating System Fedoraproject Fedora 36 All All All
Operating System Fedoraproject Fedora 37 All All All
Application Trustedfirmware Mbed Tls All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Release Mbed TLS 2.28.2 · Mbed-TLS/mbedtls · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Release Notes, Third Party Advisory
[SECURITY] Fedora 36 Update: mbedtls-2.28.2-1.fc36 - package-announce - Fedora Mailing-Lists af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
[SECURITY] Fedora 37 Update: mbedtls-2.28.2-1.fc37 - package-announce - Fedora Mailing-Lists af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
Release Mbed TLS 3.3.0 · Mbed-TLS/mbedtls · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Release Notes, Third Party Advisory
mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories af854a3a-2127-422b-91ae-364da2661108 mbed-tls.readthedocs.io Vendor Advisory
[SECURITY] Fedora 36 Update: mbedtls-2.28.2-1.fc36 - package-announce - Fedora Mailing-Lists MITRE lists.fedoraproject.org
[SECURITY] Fedora 37 Update: mbedtls-2.28.2-1.fc37 - package-announce - Fedora Mailing-Lists MITRE lists.fedoraproject.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 182047 Debian Security Update for mbedtls (CVE-2022-46393)
  • 283587 Fedora Security Update for mbedtls (FEDORA-2023-7456a62f60)
  • 283605 Fedora Security Update for mbedtls (FEDORA-2023-3c4a525dcc)

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