This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of NETGEAR R7450 1.2.0.62_1.0.1 rout
This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of NETGEAR R7450 1.2.0.62_1.0.1 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the mini_httpd service, which listens on TCP port 80 by default. The issue results from improper state tracking in the password recovery process. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of root. Was ZDI-CAN-11365.
- Published
- Feb 4, 2021
- Updated
- Jun 16, 2026
- EPSS
- 0.9% · 58th percentile
- CWE
- CWE-642
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Report tools
Action score
35
Monitor
Low priority for now.
- CVSS
- 35 / 40 · 8.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.9%
CNA vs NVD score
- NVD
- 8.8
- CNA · zdi
- 8.8
- agree
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| netgear | ac2100 firmware | cpe:2.3:o:netgear:ac2100_firmware |
| netgear | ac2100 | cpe:2.3:h:netgear:ac2100 |
| netgear | ac2400 firmware | cpe:2.3:o:netgear:ac2400_firmware |
| netgear | ac2400 | cpe:2.3:h:netgear:ac2400 |
| netgear | ac2600 firmware | cpe:2.3:o:netgear:ac2600_firmware |
| netgear | ac2600 | cpe:2.3:h:netgear:ac2600 |
| netgear | r6700 firmware | cpe:2.3:o:netgear:r6700_firmware |
| netgear | r6700 | cpe:2.3:h:netgear:r6700 |
| netgear | r6800 firmware | cpe:2.3:o:netgear:r6800_firmware |
| netgear | r6800 | cpe:2.3:h:netgear:r6800 |
| netgear | r6900 firmware | cpe:2.3:o:netgear:r6900_firmware |
| netgear | r6900 | cpe:2.3:h:netgear:r6900 |
and 26 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- netgear ac2100 firmwarebefore 1.2.0.76
- netgear ac2400 firmwarebefore 1.2.0.76
- netgear ac2600 firmwarebefore 1.2.0.76
- netgear r6020 firmwarebefore 1.0.0.48
- netgear r6080 firmwarebefore 1.0.0.48
- netgear r6120 firmwarebefore 1.0.0.76
- netgear r6220 firmwarebefore 1.1.0.104
- netgear r6230 firmwarebefore 1.1.0.104
- netgear r6260 firmwarebefore 1.1.0.78
- netgear r6330 firmwarebefore 1.1.0.78
- netgear r6350 firmwarebefore 1.1.0.78
- netgear r6700 firmwarebefore 1.2.0.76
- netgear r6800 firmwarebefore 1.2.0.76
- netgear r6850 firmwarebefore 1.1.0.78
- netgear r6900 firmwarebefore 1.2.0.76
- netgear r7200 firmwarebefore 1.2.0.76
- netgear r7350 firmwarebefore 1.2.0.76
- netgear r7400 firmwarebefore 1.2.0.76
- netgear r7450 firmwarebefore 1.2.0.76
Versions reported by the vendor
Affected version ranges reported by the assigning authority (zdi). Independent of NVD's CPE analysis and usually ahead of it.
NETGEAR R7450
- 1.2.0.62_1.0.1affected
Same product
netgear: all recordsOther highest-scoring records for the same primary product.
- CVE-2021-45511Certain NETGEAR devices are affected by authentication bypass.44Plan
- CVE-2021-45644Certain NETGEAR devices are affected by incorrect configuration of security settings.39Monitor
- CVE-2020-35795Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker.39Monitor
- CVE-2020-26927Certain NETGEAR devices are affected by authentication bypass.39Monitor
- CVE-2020-27866This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of NETGEAR R6020, R6080, R6120, R62238Monitor
- CVE-2020-35800Certain NETGEAR devices are affected by incorrect configuration of security settings.37Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
- 1sd3dVCS
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
—
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
- CVE-2020-278677 days apartThis vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6020, R6080, R6120, R6228Monitor
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Someone on the same network segment can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Adjacent
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-642 · External Control of Critical State DataCVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
- kb.netgear.com/000062641/Security-Advisory-for-Password-Recovery-Vulnerabilities-on-Some-Routers
- www.zerodayinitiative.com/advisories/ZDI-21-071/
Vendor advisories and official records. Exploit/PoC links are deliberately left out.