Is CVE-2022-46770 in the CISA KEV catalog?

No. CVE-2022-46770 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-46770?

CVE-2022-46770 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2022-46770?

CVE-2022-46770 has an EPSS score of 21.48% (97th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-46770?

Upgrade mirage firewall to 0.8.4 or later.

CVE & CISA-KEV Catalog

CVE-2022-46770

HIGHEPSS 97th pctl

7.5

CVSS v3

NVD

Description

qubes-mirage-firewall (aka Mirage firewall for QubesOS) 0.8.x through 0.8.3 allows guest OS users to cause a denial of service (CPU consumption and loss of forwarding) via a crafted multicast UDP packet (IP address range of 224.0.0.0 through 239.255.255.255).

CWE-835

How to fix

Remediation Available

mirage firewallNVD

Affected:>= 0.8.0, < 0.8.4Fixed in:0.8.4CVE-2022-46770derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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 ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

21.48%probability of exploitation in 30 days

97thpercentile

Very high risk: more likely to be exploited than 97% of all known CVEs.

References

Patch1

github.com

Other references1

packetstormsecurity.com

Related Vulnerabilities

Other CWE-835 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-13935	High	7.5	88%	-	Fix
CVE-2020-36227	High	7.5	78%	-	Fix
CVE-2024-20353	High	8.6	71%	KEV	-
CVE-2022-0778	High	7.5	71%	-	Fix
CVE-2019-14241	High	7.5	70%	-	-
CVE-2017-16944	High	7.5	63%	-	Fix

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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 2025-04-23.