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7.8
CVE-2014-4927: D-Link and NetGear routers can crash from long URL
CVE-2014-4927 · published 12 years ago
Summary
The built‑in web server used in D-Link DSL2750U, DSL2740U and NetGear WGR614, MR‑ADSL‑DG834 routers can be forced to stop working if an attacker sends a very long address in a web request. This causes the router to freeze or restart, interrupting network access. Apply the latest firmware updates from the manufacturers to fix the issue.
What to do
The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.
Affected software
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| – | acme | micro_httpd |
All versions
cpe:2.3:a:acme:micro_httpd:-:*:*:*:*:*:*:* |
| – | dlink | dsl2740u |
All versions
cpe:2.3:h:dlink:dsl2740u:-:*:*:*:*:*:*:* |
| – | dlink | dsl2750u |
All versions
cpe:2.3:h:dlink:dsl2750u:-:*:*:*:*:*:*:* |
| – | netgear | mr-adsl-dg834 |
All versions
cpe:2.3:h:netgear:mr-adsl-dg834:-:*:*:*:*:*:*:* |
| – | netgear | wgr614 |
v1 v2 v3 v4 v5 v6 v7 v8 v9 cpe:2.3:h:netgear:wgr614:v1:*:*:*:*:*:*:* |
| Ubuntu:16.04:LTS | canonical | micro-httpd | All versions |
Original advisory text
Buffer overflow in ACME micro_httpd, as used in D-Link DSL2750U and DSL2740U and NetGear WGR614 and MR-ADSL-DG834 routers allows remote attackers to cause a denial of service (crash) via a long str...
Buffer overflow in ACME micro_httpd, as used in D-Link DSL2750U and DSL2740U and NetGear WGR614 and MR-ADSL-DG834 routers allows remote attackers to cause a denial of service (crash) via a long string in the URI in a GET request.
References
- http://www.securityfocus.com/bid/68746 Exploit
- https://ubuntu.com/security/CVE-2014-4927 Third Party Advisory
- http://www.exploit-db.com/exploits/34102 Third Party Advisory
- http://packetstormsecurity.com/files/127544/ACME-micro_httpd-Denial-Of-Service.h... Third Party Advisory
- http://osvdb.org/show/osvdb/109356 Third Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2014-4927 Third Party Advisory
Internet-facing
14 days
Internal
60 days
- Not known to be exploited
- Can be exploited automatically (estimated)
- Gives an attacker partial control (estimated)
Severity
7.8
High
Type
CWE-119Buffer Overflow
Timeline
Published24 Jul 2014
Updated18 Oct 2026
First seen29 Sep 2026
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