CVE-2021-29081 json
Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker.
published 5y ago modified 4mo ago also EUVD-2021-15722
- cvss
- 8.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 39%
- public exploits
- 0
- none known
Summary
Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects RBW30 before 2.6.2.2, RBK852 before 3.2.17.12, RBK853 before 3.2.17.12, RBK854 before 3.2.17.12, RBR850 before 3.2.17.12, RBS850 before 3.2.17.12, RBK752 before 3.2.17.12, RBK753 before 3.2.17.12, RBK753S before 3.2.17.12, RBK754 before 3.2.17.12, RBR750 before 3.2.17.12, and RBS750 before 3.2.17.12.
Patch / fix
- netgear rbw30_firmware 2.6.2.2
- netgear rbk852_firmware 3.2.17.12
- netgear rbk853_firmware 3.2.17.12
- netgear rbk854_firmware 3.2.17.12
- netgear rbr850_firmware 3.2.17.12
- netgear rbs850_firmware 3.2.17.12
- netgear rbk752_firmware 3.2.17.12
- netgear rbk753_firmware 3.2.17.12
- netgear rbk753s_firmware 3.2.17.12
- netgear rbk754_firmware 3.2.17.12
- netgear rbr750_firmware 3.2.17.12
- netgear rbs750_firmware 3.2.17.12
Is CVE-2021-29081 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
0.45% chance of exploitation in the next 30 days, higher than 39% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.4 | CVSS:3.1/AC:L/AV:A/A:H/C:H/I:H/PR:H/S:C/UI:N |
| CNA | 3.1 | 8.4 | CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H |
| NVD | 3.1 | 8.4 | CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H |
| NVD | 2.0 | 5.8 | AV:A/AC:L/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-787 Out-of-bounds Write
References
Sources
- CVE List CVE-2021-29081
- NVD CVE-2021-29081
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.