What is CVE-2022-27643?

CVE-2022-27643 is a high-severity vulnerability in Netgear D6220, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2023-03-29.

How severe is CVE-2022-27643?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2022-27643 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Netgear D6220

CVE-2022-27643

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 w…

Vulnerability class: Buffer Overflow

EPSS: 0.249 (97.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

Public proof-of-concept exploits

References

zdi-disclosures@trendmicro.com (VDB Entry, Third Party Advisory)
zdi-disclosures@trendmicro.com (Vendor Advisory)

Frequently asked questions

What is CVE-2022-27643?: CVE-2022-27643 is a high-severity vulnerability in Netgear D6220, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2023-03-29.
How severe is CVE-2022-27643?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2022-27643 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.