CVE-2021-45638: netgear d6220_firmware Out-of-bounds Write
Vulnerability summary
CVE-2021-45638 is a critical (CVSS 9.8) Out-of-bounds Write vulnerability in netgear d6220_firmware. EPSS estimates a 1.47% chance of exploitation in the next 30 days, higher than 73.3% of scored vulnerabilities.
Timeline
- 26-12-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
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, R6300v2 before 1.0.4.50, R6400 before 1.0.1.68, R7000 before 1.0.11.116, R7100LG before 1.0.0.70, RBS40V before 2.6.2.8, RBW30 before 2.6.2.2, RS400 before 1.5.1.80, R7000P before 1.3.2.132, and R6900P before 1.3.2.132.
CVSS metrics
3 scores · 2 sources · 2 versions- CVE.orgCNA9.6CriticalCVSS:3.1/AC:L/AV:A/A:H/C:H/I:H/PR:N/S:C/UI:NDiffers
EPSS trend
Probability
1.47%
Chance of exploitation in the next 30 days
Percentile
73%
Versus all other CVEs
30-day change
0.00 pp
From 1.47% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Netgear14 products
- d6220_firmware< 1.0.0.68
- d6400_firmware< 1.0.0.102
- d7000v2_firmware< 1.0.0.74
- d8500_firmware< 1.0.3.60
- dc112a_firmware< 1.0.0.56
1 vendor · 14 products