CVE-2023-46445

Aliases:GHSA-cfc2-wr2v-gxm5PYSEC-2023-237
Advisory lineage Upstream: 0 Downstream: 5
Modified
Published: 14 Nov 2023, 00:00
Last modified:25 Feb 2026, 17:20

Vulnerability Summary

Overall Risk (default)
low
24/100
CVSS Score
5.9 MEDIUM
v3.1 (nvd)
EPSS Score
0.45% LOW
0% probability -0.12%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

14 Nov 2023, 00:00
Published
Vulnerability first disclosed
25 Feb 2026, 17:20
Last Modified
Vulnerability information updated

Description

An issue in AsyncSSH before 2.14.1 allows attackers to control the extension info message (RFC 8308) via a man-in-the-middle attack, aka a "Rogue Extension Negotiation."

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.9CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
  • v3.1•MEDIUM•Score: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS Trends

Current EPSS score: 0.45%• Percentile: 64%

Techniques & Countermeasures

  • CWE-345•Insufficient Verification of Data Authenticity

    The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.

Affected Systems

  • asyncssh_project•asyncssh

    < 2.14.1

  • PyPI•asyncssh

    < 2.14.1

References (14)