CVE-2021-45637: netgear ac2100_firmware Out-of-bounds Write
CVSS: 9.8v3.1CriticalModified
Published 26-12-2021Last modified 04-08-2024
Vulnerability summary
CVE-2021-45637 is a critical (CVSS 9.8) Out-of-bounds Write vulnerability in netgear ac2100_firmware. EPSS estimates a 1.20% chance of exploitation in the next 30 days, higher than 67.6% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.1 (NVD)EPSS score
1.20%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
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 R6260 before 1.1.0.76, R6800 before 1.2.0.62, R6700v2 before 1.2.0.62, R6900v2 before 1.2.0.62, R7450 before 1.2.0.62, AC2100 before 1.2.0.62, AC2400 before 1.2.0.62, and AC2600 before 1.2.0.62.
CVSS metrics
3 scores · 2 sources · 2 versionsCritical 9.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSources2 sources · 8.3–9.8
- CVE.orgCNA8.3HighCVSS:3.1/AC:L/AV:A/A:L/C:H/I:H/PR:N/S:U/UI:NDiffers
High 7.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
1.20%
Chance of exploitation in the next 30 days
Percentile
68%
Versus all other CVEs
30-day change
0.00 pp
From 1.20% on 18-09-2026
18-09-202618-10-2026
EPSS score1.20%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Netgear8 products
- ac2100_firmware< 1.2.0.62
- ac2400_firmware< 1.2.0.62
- ac2600_firmware< 1.2.0.62
- r6260_firmware< 1.1.0.76
- r6700v2_firmware< 1.2.0.62
1 vendor · 8 products