Is CVE-2022-27641 in the CISA KEV catalog?

No. CVE-2022-27641 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-27641?

CVE-2022-27641 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2022-27641?

CVE-2022-27641 has an EPSS score of 1.23% (65th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-27641?

Upgrade d7800 firmware to 1.0.1.68 or later. Fixes are available for 9 affected products.

CVE & CISA-KEV Catalog

CVE-2022-27641

HIGH

8.8

CVSS v3

NVD

Description

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700v3 1.0.4.120_10.0.91 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the NetUSB module. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-15806.

CWE-190Integer Overflow

How to fix

Remediation Available

d7800 firmwareNVD

Affected:< 1.0.1.68Fixed in:1.0.1.68CVE-2022-27641derived from NVD

ex6200 firmwareNVD

Affected:< 1.0.1.90Fixed in:1.0.1.90CVE-2022-27641derived from NVD

ex8000 firmwareNVD

Affected:< 1.0.1.240Fixed in:1.0.1.240CVE-2022-27641derived from NVD

r6220 firmwareNVD

Affected:< 1.1.0.112Fixed in:1.1.0.112CVE-2022-27641derived from NVD

r6230 firmwareNVD

Affected:< 1.1.0.112Fixed in:1.1.0.112CVE-2022-27641derived from NVD

r6400 firmwareNVD

Affected:< 1.0.4.122Fixed in:1.0.4.122CVE-2022-27641derived from NVD

r6700 firmwareNVD

Affected:< 1.0.4.122Fixed in:1.0.4.122CVE-2022-27641derived from NVD

r7000 firmwareNVD

Affected:< 1.0.11.130Fixed in:1.0.11.130CVE-2022-27641derived from NVD

r7800 firmwareNVD

Affected:< 1.0.2.90Fixed in:1.0.2.90CVE-2022-27641derived from NVD

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 VectorAdjacent

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

1.23%probability of exploitation in 30 days

65thpercentile

Moderate risk: more likely to be exploited than 65% of all known CVEs.

References

Vendor Advisory1

kb.netgear.com

Third-Party Advisory1

zerodayinitiative.com

Related Vulnerabilities

Other CWE-190 (Integer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-16040	Medium	6.5	100%	-	Fix
CVE-2019-11477	High	7.5	99%	-	Fix
CVE-2023-44443	High	7.8	94%	-	Fix
CVE-2014-0569	High	9.3	90%	-	-
CVE-2017-3599	High	7.5	90%	-	Fix
CVE-2023-21716	Critical	9.8	82%	-	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 2024-11-21.