🛡️ CVE-2018-7749 — asyncssh

🔴 CVSS 9.5 — Critical ✅ No Known Exploit CWE-287 OSV
9.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

AsyncSSH SSH Server Authentication Bypass

The SSH server implementation of AsyncSSH before 1.12.1 does not properly check whether authentication is completed before processing other requests. A customized SSH client can simply skip the authentication step.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2018-7749 is classified as CWE-287: Improper Authentication. The identity of the caller is not established correctly, so an attacker can act as another user.

Affected software

CVE-2018-7749 is recorded against 1 package.

  • asyncssh (fixed in 1.12.1)

Timeline and source

Published on 14 May 2022 and last revised on 16 February 2025. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

nvd.nist.gov (Advisory)
github.com (Web)
github.com (Web)
github.com (Web)
github.com (Package)
groups.google.com (Web)

Details

Severity CRITICAL
CVSS Score 9.5
CVSS Vector CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CWE CWE-287
Public Exploit ✅ No
Source OSV
Published 2022-05-14
Updated 2026-08-12
Modified 2025-02-16
Fix URL N/A

Affected Packages

Software From version Fixed in
asyncssh — 1.12.1

Similar Threats

Exploit Protection

Are you running asyncssh?

CVE-2018-7749 carries CVSS 9.5 Critical rating. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

Check My Site For CVE-2018-7749 →

No credit card required  ·  Results in minutes

ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.