What is CVE-2021-45638?

CVE-2021-45638 is a critical-severity vulnerability in Netgear D6220, classified under Out-of-bounds Write. CVSS score: 9.6/10. Published 2021-12-26.

How severe is CVE-2021-45638?

Critical severity. CVSS v3 base score is 9.6 out of 10.

Buffer overflow in Netgear D6220

CVE-2021-45638

Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects D6220 before 1.0.0.68, D6400 before 1.0.0.102, D7000v2 before 1.0.0.74, D8500 before 1.0.3.60, DC112A before 1.0.0.56, R6300…

Vulnerability class: Buffer Overflow

EPSS: 0.015 (70.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

Affected products

Netgear D6220
Netgear D6220_firmware
Netgear D6400
Netgear D6400_firmware
Netgear D7000v2
Netgear D7000v2_firmware
Netgear D8500
Netgear D8500_firmware
Netgear Dc112a
Netgear Dc112a_firmware

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

cve@mitre.org (Patch, x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-45638?: CVE-2021-45638 is a critical-severity vulnerability in Netgear D6220, classified under Out-of-bounds Write. CVSS score: 9.6/10. Published 2021-12-26.
How severe is CVE-2021-45638?: Critical severity. CVSS v3 base score is 9.6 out of 10.