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CVE-2016-5649· NVD / CVE Program· CNA certcc

Netgear DGN2200 and DGND3700 disclose the administrator password

A vulnerability is in the 'BSW_cxttongr.htm' page of the Netgear DGN2200, version DGN2200-V1.0.0.50_7.0.50, and DGND3700, version DGND3700-V1.0.0.17_1.0.17, which can allow a remote attacker to access this page without any authentication. When processed, it exposes the admin password in clear text before it gets redirected to absw_vfysucc.cgia. An attacker can use this password to gain administrator access to the targeted router's web interface.

CriticalCVSS 9.8 · v3.0—Proof of concept No fix recorded
Published
Jul 24, 2018
Updated
Jun 16, 2026
EPSS
23.6% · 98th percentile
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Action score

46

Plan

Add it to your regular patch cycle.

CVSS
39 / 40 · 9.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
7 / 30 · 23.6%

Affected systems

VendorProduct
netgeardgn2200 firmware
netgeardgn2200
netgeardgnd3700 firmware
netgeardgnd3700

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • netgear dgn2200 firmware1.0.0.50_7.0.50
  • netgear dgnd3700 firmware1.0.0.17_1.0.17

Versions reported by the vendor

Affected version ranges reported by the assigning authority (certcc). Independent of NVD's CPE analysis and usually ahead of it.

  • Netgear DGN2200

    • DGN2200-V1.0.0.50_7.0.50affected

  • Netgear DGND3700

    • DGND3700-V1.0.0.17_1.0.17affected

Same product

netgear: all records

Other highest-scoring records for the same primary product.

  • CVE-2017-6077ping.cgi on NETGEAR DGN2200 devices with firmware through 10.0.0.50 allows remote authenticated users to execute arbitrary OS commands via sKEV
    90Now
  • CVE-2024-57046A vulnerability in the Netgear DGN2200 router with firmware version v1.0.0.46 and earlier permits unauthorized individuals to bypass the aut
    36Monitor
  • CVE-2017-6366Cross-site request forgery (CSRF) vulnerability in NETGEAR DGN2200 routers with firmware 10.0.0.20 through 10.0.0.50 allows remote attackers
    36Monitor
  • CVE-2020-35785NETGEAR DGN2200v1 devices before v1.0.0.60 mishandle HTTPd authentication (aka PSV-2020-0363, PSV-2020-0364, and PSV-2020-0365).
    35Monitor
  • CVE-2019-20753Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker.
    35Monitor
  • CVE-2016-11054NETGEAR DGN2200v4 devices before 2017-01-06 are affected by command execution and an FTP insecure root directory.
    29Monitor

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

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Nuclei detection template ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Nuclei detection templateNuclei template CVE-2016-5649 —

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.

EPSS, last 120 days-1% in 7 days

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 researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet 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
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-319 · Cleartext Transmission of Sensitive Information

CVSS vector

CVSS:3.0/AV:N/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 help

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records