CVE-2021-45508 json
Certain NETGEAR devices are affected by authentication bypass.
published 4y ago modified 4mo ago also EUVD-2021-32274
- cvss
- 9.6
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.2%
- EPSS 1.2% chance of exploitation in 30 days, percentile 67%
- public exploits
- 0
- none known
Summary
Certain NETGEAR devices are affected by authentication bypass. This affects CBR40 before 2.5.0.24, CBR750 before 4.6.3.6, RBK752 before 3.2.17.12, RBR750 before 3.2.17.12, RBS750 before 3.2.17.12, RBK852 before 3.2.17.12, and RBR850 before 3.2.17.12.
Patch / fix
- netgear cbr40_firmware 2.5.0.24
- netgear cbr750_firmware 4.6.3.6
- netgear rbk752_firmware 3.2.17.12
- netgear rbr750_firmware 3.2.17.12
- netgear rbs750_firmware 3.2.17.12
- netgear rbk852_firmware 3.2.17.12
- netgear rbr850_firmware 3.2.17.12
Is CVE-2021-45508 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
1.18% chance of exploitation in the next 30 days, higher than 67% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.6 | CVSS:3.1/AC:L/AV:A/A:H/C:H/I:H/PR:N/S:C/UI:N |
| CNA | 3.1 | 9.6 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
References
Sources
- CVE List CVE-2021-45508
- NVD CVE-2021-45508
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.