Is CVE-2023-46445 in the CISA KEV catalog?

No. CVE-2023-46445 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-46445?

CVE-2023-46445 has a CVSS v3 base score of 5.9 (MEDIUM).

What is the EPSS score for CVE-2023-46445?

CVE-2023-46445 has an EPSS score of 0.59% (44th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-46445?

Upgrade python-asyncssh on debian 11 to 2.5.0-0.1+deb11u1 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2023-46445

MEDIUM

5.9

CVSS v3

NVD

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."

CWE-345

How to fix

Remediation Available

python-asyncsshDebian

Fixed in:2.5.0-0.1+deb11u1CVE-2023-46445

Fixed in:2.10.1-2+deb12u2CVE-2023-46445

Fixed in:2.15.0-1CVE-2023-46445

python-asyncsshUbuntu

Fixed in:1.11.1-1ubuntu0.1~esm2USN-7108-2

Fixed in:1.12.2-1ubuntu0.2USN-7108-1

Fixed in:2.5.0-1ubuntu0.1USN-7108-1

Fixed in:2.10.1-2ubuntu0.1+esm1USN-7108-1

python3-asyncsshUbuntu

Fixed in:1.11.1-1ubuntu0.1~esm2USN-7108-2

Fixed in:1.12.2-1ubuntu0.2USN-7108-1

Fixed in:2.5.0-1ubuntu0.1USN-7108-1

Fixed in:2.10.1-2ubuntu0.1+esm1USN-7108-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

0.59%probability of exploitation in 30 days

44thpercentile

Moderate risk: more likely to be exploited than 44% of all known CVEs.

References

Third-Party Advisory1

github.com

Other references7

Related Vulnerabilities

Other CWE-345 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-38831	High	7.8	98%	KEV + Ransom	Fix
CVE-2016-4553	High	8.6	80%	-	Fix
CVE-2016-4554	High	8.6	39%	-	Fix
CVE-2023-35719	Medium	6.8	26%	-	-
CVE-2022-26871	Critical	9.8	20%	KEV	-
CVE-2014-4936	High	9.3	17%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-02-25.