CVE & CISA-KEV Catalog

CVE-2022-46392

MEDIUM
5.3
CVSS v3
NVD

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.

How to fix

Remediation Available
mbedtlsDebian
Fixed in:2.16.9-0.1+deb11u1CVE-2022-46392
Fixed in:2.28.2-1CVE-2022-46392
Fixed in:2.28.2-1CVE-2022-46392
Fixed in:2.28.2-1CVE-2022-46392

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityNone
AvailabilityNone

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

Exploit Intelligence

0.79%probability of exploitation in 30 days
52ndpercentile

Moderate risk: more likely to be exploited than 52% of all known CVEs.

References

Related Vulnerabilities

Other CWE-203 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2017-5753Medium5.694%-Fix
CVE-2003-0190Medium5.077%-Fix
CVE-2017-5715Medium5.674%-Fix
CVE-2018-3639Medium5.561%-Fix
CVE-2023-28770High7.558%-Fix
CVE-2004-1602Medium5.031%--
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-05.