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CVE-2023-28113

20
FAUCET Score

CVE-2023-28113 is a medium-severity vulnerability affecting the russh Rust SSH client and server library versions 0.34.0 through 0.36.1 and 0.37.0. The flaw stems from insufficient Diffie-Hellman key validation, which can lead to insecure shared secrets and compromise confidentiality, particularly in connections between russh peers or with other misbehaving SSH implementations. The vulnerability has a CVSS score of 5.9, indicating a network attack vector with high attack complexity and a high impact on confidentiality. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 0.34.0, < 0.36.2CPE matchmatch criteria
cpe:2.3:a:russh_project:russh:*:*:*:*:*:rust:*:*
0.37.0CPE matchmatch criteria
cpe:2.3:a:russh_project:russh:0.37.0:-:*:*:*:rust:*:*
0.37.0CPE matchmatch criteria
cpe:2.3:a:russh_project:russh:0.37.0:beta1:*:*:*: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
0.62%
Probability of exploitation in next 30 days
EPSS Percentile
45.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0062 is in the 8th percentile among its peer group of 19,956 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

Patch Available

Vendor Patches (3)

github_advisorypatch availablevia nvd_reference
View patch
rustpatch availablevia ghsa
Product: russhFixed in: 0.36.2
rustpatch availablevia ghsa
Product: russhFixed in: 0.37.1

Vendor Advisories (1)

rustGHSA-cqvm-j2r2-hwpgmedium

russh may use insecure Diffie-Hellman keys

Mar 17, 2023

References

github.com / warp-tech/russh/blob/master/russh/src/kex/dh/groups.rs
Product
github.com / warp-tech/russh/blob/master/russh/src/kex/dh/groups.rs
Product
github.com / warp-tech/russh/commit/d831a3716d3719dc76f091fcea9d94bd4ef97c6e
Patch
github.com / warp-tech/russh/releases/tag/v0.36.2
Release Notes
github.com / warp-tech/russh/releases/tag/v0.37.1
Release Notes
github.com / warp-tech/russh/security/advisories/GHSA-cqvm-j2r2-hwpg
ExploitVendor Advisory