TP-Link TL-WR740N 4 with firmware 3.17.0 Build 140520, 3.16.6 Build 130529, and 3.16.4 Build 130205 allows remote attackers to cause a denia
TP-Link TL-WR740N 4 with firmware 3.17.0 Build 140520, 3.16.6 Build 130529, and 3.16.4 Build 130205 allows remote attackers to cause a denial of service (httpd crash) via vectors involving a "new" value in the isNew parameter to PingIframeRpm.htm.
- Published
- Dec 8, 2014
- Updated
- Jun 16, 2026
- EPSS
- 7.2% · 94th percentile
- CWE
- CWE-19
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Report tools
Action score
22
Monitor
Low priority for now.
- CVSS
- 20 / 40 · 5.0 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 2 / 30 · 7.2%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| tp-link | tl-wr740n firmware | cpe:2.3:o:tp-link:tl-wr740n_firmware |
| tp-link | tl-wr740n | cpe:2.3:h:tp-link:tl-wr740n |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- tp-link tl-wr740n4
- tp-link tl-wr740n firmware3.16.4
- tp-link tl-wr740n firmware3.16.6
- tp-link tl-wr740n firmware3.17.0
Same product
tp-link: all recordsOther highest-scoring records for the same primary product.
- CVE-2022-4296TP-Link TL-WR740N ARP resource consumption22Monitor
- CVE-2020-14965On TP-Link TL-WR740N v4 and TL-WR740ND v4 devices, an attacker with access to the admin panel can inject HTML code and change the HTML conte19Monitor
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
- Exploit-DB entry ×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.
| Source | Kind | Date |
|---|---|---|
| Exploit-DB entry | dos | 2014-11-24 |
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.
- First PoC-15 d
- Published
- TodaySep 30, 2026+4314 d
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.
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
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- none
- Availability
- P · the service can be disrupted
- Attack complexity
- Low
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- P
Weakness class (CWE)
CWE-19 · Data Processing ErrorsCVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:P
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.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
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
- packetstormsecurity.com/files/129227/TP-Link-TL-WR740N-Denial-Of-Service.html
- www.exploit-db.com/exploits/35345
- www.osvdb.org/115017
- www.zeroscience.mk/en/vulnerabilities/ZSL-2014-5210.php
- exchange.xforce.ibmcloud.com/vulnerabilities/98927
Vendor advisories and official records. Exploit/PoC links are deliberately left out.