HOMEVULNERABILITIESCVE-2016-5649
CRITICAL

CVE-2016-5649

CWE-319Published: July 24, 2018· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2016-5649 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

netgear4 product(s)
dgn2200 firmwaredgn2200dgnd3700 firmwaredgnd3700
Source: NVD CPE · 4 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://packetstormsecurity.com/files/152675/Netgear-DGN2200-DGND3700-Admin-Password-Disclosure.html
ADVISORYhttps://packetstormsecurity.com/files/140342/Netgear-DGN2200-DGND3700-WNDR4500-Information-Disclosure.html
ADVISORYhttp://packetstormsecurity.com/files/152675/Netgear-DGN2200-DGND3700-Admin-Password-Disclosure.html
ADVISORYhttps://packetstormsecurity.com/files/140342/Netgear-DGN2200-DGND3700-WNDR4500-Information-Disclosure.html

All References (4)

→
http://packetstormsecurity.com/files/152675/Netgear-DGN2200-DGND3700-Admin-Password-Disclosure.htmlExploit · Third Party Advisory · VDB Entry
→
https://packetstormsecurity.com/files/140342/Netgear-DGN2200-DGND3700-WNDR4500-Information-Disclosure.htmlThird Party Advisory · VDB Entry
→
http://packetstormsecurity.com/files/152675/Netgear-DGN2200-DGND3700-Admin-Password-Disclosure.htmlExploit · Third Party Advisory · VDB Entry
→
https://packetstormsecurity.com/files/140342/Netgear-DGN2200-DGND3700-WNDR4500-Information-Disclosure.htmlThird Party Advisory · VDB Entry

Quick Facts

CVE IDCVE-2016-5649
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-319
CISA KEVNo
Affected1 vendor(s)
PublishedJul 24, 2018

Related CVEs (CWE-319)

CVE-2025-4378
10.0
CVE-2025-47419
10.0
CVE-2018-11749
9.8
CVE-2019-17393
9.8
CVE-2019-5505
9.8
CVE-2022-21798
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2016-5649 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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