PatchTheCVECVE-2020-35795: Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker
CVE-2020-35795 is a critical-severity flaw (CVSS 9.8) affecting ac2100 firmware, ac2400 firmware, ac2600 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects AC2100 before 1.2.0.72, AC2400 before 1.2.0.72, AC2600 before 1.2.0.72, CBK40 before 2.5.0.10, CBR40 before 2.5.0.10, D7800 before 1.0.1.58, EAX20 before 1.0.0.36, EAX80 before 1.0.1.62, EX7500 before 1.0.0.68, MK62 before 1.0.5.102, MR60 before 1.0.5.102, MS60 before 1.0.5.102, R6120 before 1.0.0.70, R6220 before 1.1.0.100, R6230 before 1.1.0.1
Why this priority
- Critical severity
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.8 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 1.2% (top 32%) |
| CISA exploited list | No |
| Weakness | CWE-120 |
| Published | 2020-12-30 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2020-35795?
ac2100 firmware: upgrade to 1.2.0.72; ac2400 firmware: upgrade to 1.2.0.72; ac2600 firmware: upgrade to 1.2.0.72. Exact commands for each OS are on this page.
Is CVE-2020-35795 being exploited?
CVE-2020-35795 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2020-35795 affect?
CVE-2020-35795 affects ac2100 firmware, ac2400 firmware, ac2600 firmware. Severity is critical (CVSS 9.8). Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects AC2100 before 1.2.0.72, AC2400 before 1.2.0.72, AC2600 before 1.2.0.72, CBK40 before 2.5.0.10, CBR40 before 2.5.0.10, D7800 before 1.0.1.
How urgent is CVE-2020-35795?
Priority 56/100. Critical severity; Remotely exploitable, no login, no user action
Software pages
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