CVE-2025-4978DGND3700 Authentication Bypass
A vulnerability, which was classified as very critical, was found in Netgear DGND3700 1.1.00.15_1.00.15NA.
Published May 20, 2025 · Updated Jun 12, 2025
Key Facts
Patch immediately- CVE-2025-4978 is a critical-severity vulnerability (CVSS 9.3 v4) affecting Dgnd3700 Firmware (Netgear), DGND3700.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 21% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Scores
CVSS v4
9.3
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS (30-day exploit likelihood)
21%
Higher than 97.5% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
38/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Proof of concept
Public exploit code
1
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Advisories And Exploit References
Description
A vulnerability, which was classified as very critical, was found in Netgear DGND3700 1.1.00.15_1.00.15NA. This affects an unknown part of the file /BRS_top.html of the component Basic Authentication. The manipulation leads to improper authentication.
It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.
Other products might be affected as well. The vendor was contacted early about this disclosure.
Affected Products
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Dgnd3700 FirmwareNetgear | 1.1.00.15_1.00.15na | n/a |
| DGND3700 | >= 1.1.00.15_1.00.15NA | n/a |
Timeline
Publicly disclosed
May 20, 2025
Last updated
Jun 12, 2025
Weakness Type
- CWE-287 Improper Authentication
FAQ
Common Questions.
A vulnerability, which was classified as very critical, was found in Netgear DGND3700 1.1.00.15_1.00.15NA.
Affected: Dgnd3700 Firmware (Netgear) versions 1.1.00.15_1.00.15na; DGND3700 versions >= 1.1.00.15_1.00.15NA. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Is CVE-2025-4978 On Your Attack Surface?
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