CVE-2021-45617
No exploitation reported by the sources we read.
- Published2021-12-26
- Fixed in2.5.0.24
- WeaknessCWE-77
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects CBR40 before 2.5.0.24, EAX20 before 1.0.0.48, EAX80 before 1.0.1.64, EX7500 before 1.0.0.72, R6400 before 1.0.1.68, R6900P before 1.3.2.132, R7000 before 1.0.11.116, R7000P before 1.3.2.132, R7900 before 1.0.4.38, R7960P before 1.4.1.66, R8000 before 1.0.4.66, RAX200 before 1.0.3.106, RS400 before 1.5.1.80, XR300 before 1.0.3.68, MK62 before 1.0.6.110, MR60 before 1.0.6.110, R6400v2 before 1.0.4.106, R8000P before 1.4.1.66, RAX20 before 1.0.2.64, RAX45 before 1.0.2.82, RAX80 before 1.0.3.106, MS60 before 1.0.6.110, R6700v3 before 1.0.4.106, R7900P before 1.4.1.66, RAX15 before 1.0.2.64, RAX50 before 1.0.2.82, RAX75 before 1.0.3.106, RBR750 before 3.2.16.22, RBR850 before 3.2.16.22, RBS750 before 3.2.16.22, RBS850 before 3.2.16.22, RBK752 before 3.2.16.22, and RBK852 before 3.2.16.22.
Timeline
dates in UTC- 2021-12-2601:15CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 18:48 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2021-45617?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2021-45617?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 2.5 | < 2.5.0.24 | 2.5.0.24 | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 1.0 | < 1.0.0.48 | 1.0.0.48 | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 1.0 | < 1.0.1.64 | 1.0.1.64 | NVD |
30 more products in the sources.
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Fix
- Update Netgear cbr40 firmware to 2.5.0.24
Advisories and patches
- kb.netgear.comVendor Advisory
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
- CNACVSS 3.19.8read 2026-10-23
- NVDCVSS 3.19.8read 2026-10-23
- NVDCVSS 2.010read 2026-10-23
- NVDweakness (CWE)CWE-77read 2026-10-23
- FIRST EPSSEPSS score2.1 %2026-10-22
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Published
- 2021-12-26
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2021-45617?
Is CVE-2021-45617 actively exploited?
What is the CVSS score for CVE-2021-45617?
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