CVE-2021-45573 json
Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker.
published 2021-12-26 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-32339
- cvss
- 8.3
- 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 41%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- netgear r6260_firmware 1.1.0.76
- netgear r6800_firmware 1.2.0.62
- netgear r6700_firmware 1.2.0.62
- netgear r6900_firmware 1.2.0.62
- netgear r7450_firmware 1.2.0.62
- netgear ac2100_firmware 1.2.0.62
- netgear ac2400_firmware 1.2.0.62
- netgear ac2600_firmware 1.2.0.62
Exploit prediction
0.47% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.3 | CVSS:3.1/AC:L/AV:A/A:L/C:H/I:H/PR:N/S:U/UI:N |
| CNA | 3.1 | 8.3 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/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-2021-45573
- NVD CVE-2021-45573
Fencer Vulns 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.