CVE-2023-46445: asyncssh · n/a
Affects asyncsshSource CVE Database V5
Not known to be exploited : upgrade to 2.14.1 when convenient.
Data as of 25 Oct 2026, 22:43 UTC
Rated Medium by the CNA (mitre) · No CVSS score from NVD or the CNA
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 47% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 2.14.1
Exploitation evidence
Disclosed: evidence found.
CVE published 14 Nov 2023
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.
What to do
Upgrade asyncssh to 2.14.1.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
PyPIasyncsshpkg:pypi/asyncsshOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Users should upgrade AsyncSSH to version 2.14.1 or later, where this vulnerability has been fixed. No other mitigation actions are indicated by the vendor advisory.
Description
AsyncSSH versions prior to 2.14.1 contain a vulnerability that allows an attacker to manipulate the extension info message as defined in RFC 8308 through a man-in-the-middle attack, known as a "Rogue Extension Negotiation." This issue was fixed in version 2.14.1.
References
- github.com/ronf/asyncssh/security/advisories/GHSA-cfc2-wr2v-gxm5 (opens in a new tab)
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ME34ROZWMDK5KLMZKTSA422XVJZ7IMTE/ (opens in a new tab)
- terrapin-attack.com (opens in a new tab)
- github.com/ronf/asyncssh/blob/develop/docs/changes.rst (opens in a new tab)
- github.com/advisories/GHSA-cfc2-wr2v-gxm5 (opens in a new tab)
- packetstormsecurity.com/files/176280/Terrapin-SSH-Connection-Weakening.html (opens in a new tab)
- security.netapp.com/advisory/ntap-20231222-0001/ (opens in a new tab)
- lists.debian.org/debian-lts-announce/2024/09/msg00042.html (opens in a new tab)