CVE-2022-46392

medium

Published 2022-12-15 · Modified 2026-06-05

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CVSS v3

5.3

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

CVSS v4 NEW

—

not yet in upstream

VIR risk

5.3

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.

Predictions

Exploit likelihood

63%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

Fedora Affected 2 releases

Version	Status	Fixed in
37	Affected	—
36	Affected	—

Debian Fixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`2.28.2-1`
sid	Fixed	`2.28.2-1`
forky	Fixed	`2.28.2-1`
bullseye	Fixed	`2.16.9-0.1+deb11u1`
bookworm	Fixed	`2.28.2-1`

Application impact

Vendor	Product	Versions	Fixed
arm	mbed_tls	`{"endExcluding":"2.28.2"}`	`2.28.2`
trustedfirmware	mbed_tls	`{"startIncluding":"3.0.0","endExcluding":"3.3.0"}`	`3.3.0`

References

CWEs

CWE-203

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.