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CVE-2023-49092

18
FAUCET Score

CVE-2023-49092 affects RustCrypto/RSA, a pure Rust RSA implementation, due to a non-constant-time operation that leaks private key information via network timing. This vulnerability carries a CVSS score of 5.9 (Medium) with high confidentiality impact, requiring high attack complexity but no user interaction. There is currently no fix available, and no public exploit code, active exploitation, or significant community discussion has been observed.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:a:rustcrypto:rsa:*:*:*:*:*:rust:*:*

CVSS Data

CVSS version used by this source: 3.1

5.9MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.60%
Probability of exploitation in next 30 days
EPSS Percentile
45.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0060 is in the 8th percentile among its peer group of 19,955 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

github_advisoryvendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

rustGHSA-c38w-74pg-36hrmedium

Marvin Attack: potential key recovery through timing sidechannels

Nov 28, 2023

References

github.com / RustCrypto/RSA/issues/19
Issue Tracking
github.com / RustCrypto/RSA/security/advisories/GHSA-c38w-74pg-36hr
Vendor Advisory