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CVE-2022-29245

21
FAUCET Score

CVE-2022-29245 affects SSH.NET versions 2020.0.0 and 2020.0.1, where a weak random number generator (System.Random) is used to generate private keys during X25519 key exchange. This vulnerability has a CVSS score of 5.9 (Medium), indicating that an attacker can decrypt communications by eavesdropping, given the high attack complexity. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2020.0.0CPE matchmatch criteria
cpe:2.3:a:ssh.net_project:ssh.net:2020.0.0:-:*:*:*:.net:*:*
2020.0.0CPE matchmatch criteria
cpe:2.3:a:ssh.net_project:ssh.net:2020.0.0:beta1:*:*:*:.net:*:*
2020.0.1CPE matchmatch criteria
cpe:2.3:a:ssh.net_project:ssh.net:2020.0.1:*:*:*:*:.net:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.41%
Probability of exploitation in next 30 days
EPSS Percentile
70.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0141 is in the 40th 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

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
nugetpatch availablevia ghsa
Product: SSH.NETFixed in: 2020.0.2

Vendor Advisories (1)

nugetGHSA-72p8-v4hg-v45pmedium

Weak private key generation in SSH.NET

Jun 1, 2022

References

github.com / sshnet/SSH.NET/blob/bc99ada7da3f05f50d9379f2644941d91d5bf05a/src/Renci.SshNet/Security/KeyExchangeECCurve25519.cs
ExploitThird Party Advisory
github.com / sshnet/SSH.NET/commit/03c6d60736b8f7b42e44d6989a53f9b644a091fb
PatchThird Party Advisory
github.com / sshnet/SSH.NET/releases/tag/2020.0.2
Release NotesThird Party Advisory
github.com / sshnet/SSH.NET/security/advisories/GHSA-72p8-v4hg-v45p
ExploitMitigationThird Party Advisory