CVE-2022-46392
Summary
| CVE | CVE-2022-46392 |
|---|---|
| State | PUBLISHED |
| Assigner | mitre |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2022-12-15 23:15:10 UTC |
| Updated | 2026-06-05 19:38:32 UTC |
| Description | An issue was discovered in Mbed TLS before 2.28.2 and 3.x before 3.3.0. An adversary with access to precise enough information about memory accesses (typically, an untrusted operating system attacking a secure enclave) can recover an RSA private key after observing the victim performing a single private-key operation, if the window size (MBEDTLS_MPI_WINDOW_SIZE) used for the exponentiation is 3 or smaller. |
Risk And Classification
Primary CVSS: v3.1 5.3 MEDIUM from [email protected]
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS: 0.002390000 probability, percentile 0.472600000 (date 2026-06-11)
Problem Types: CWE-203 | n/a | CWE-203 CWE-203 Observable Discrepancy
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 5.3 | MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N |
| 3.1 | ADP | DECLARED | 5.3 | MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N |
| 3.1 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | Secondary | 5.3 | MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
HighPrivileges Required
NoneUser Interaction
RequiredScope
UnchangedConfidentiality
HighIntegrity
NoneAvailability
NoneCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| 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
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| 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 | |
| lists.debian.org/debian-lts-announce/2025/06/msg00034.html | af854a3a-2127-422b-91ae-364da2661108 | lists.debian.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 |
| [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 |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 183711 Debian Security Update for mbedtls (CVE-2022-46392)
- 283587 Fedora Security Update for mbedtls (FEDORA-2023-7456a62f60)
- 283605 Fedora Security Update for mbedtls (FEDORA-2023-3c4a525dcc)
- 905190 Common Base Linux Mariner (CBL-Mariner) Security Update for fluent-bit (12965)
- 905228 Common Base Linux Mariner (CBL-Mariner) Security Update for fluent-bit (12968)
- 906519 Common Base Linux Mariner (CBL-Mariner) Security Update for fluent-bit (12968-1)
- 906633 Common Base Linux Mariner (CBL-Mariner) Security Update for fluent-bit (12968-3)