9.1

CVE-2024-2873: User authentication bypass in wolfSSH server

Analyzed
Published 25-03-2024Last modified 01-08-2024

Vulnerability summary

CVE-2024-2873 is a critical (CVSS 9.1) Improper Authentication vulnerability in wolfssh. EPSS estimates a 0.62% chance of exploitation in the next 30 days, higher than 49.9% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 9.1 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 1% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
9.1/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.62%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Timeline

  1. 25-03-2024
    PublishedVulnerability first disclosed.
  2. 01-08-2024
    Last modifiedVulnerability information updated.

Description

A vulnerability was found in wolfSSH's server-side state machine before versions 1.4.17. A malicious client could create channels without first performing user authentication, resulting in unauthorized access.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.62%

Chance of exploitation in the next 30 days

Percentile

50%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.62% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Wolfssh1 product
Wolfssl inc.1 product

2 vendors · 2 products

References

3 links