CVE Tools
Sign in

CVE-2018-15840

Published: Mar 29, 2019Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-119
NVD MITRE
7.5CVSSHIGH
EPSS Score
1.9%
Top 23.6%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

Description

TP-Link TL-WR840N devices allow remote attackers to cause a denial of service (networking outage) via fragmented packets, as demonstrated by an "nmap -f" command.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-119

Affected Products

n/an/a
TL-WR840NTP-Link Technologies Co Ltd.Networking Infrastructure
tl-wr840n firmwaretp-linkNetworking Infrastructure
tp-link technologies co ltd.commercialCNNetworking Infrastructureaka tl-wr841n, tl-wr940n, tl-wr886n
tp-linkcommercialTWNetworking Infrastructureaka tp-link, tp link

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://hackingvila.wordpress.com/2019/02/17/tp-link-wireless-n-router-wr840n-buffer-overflow-cve-2018-15840/
hackingvila.wordpress.com
https://cxsecurity.com/cveshow/CVE-2018-15840/
cxsecurity.com
https://nvd.nist.gov/vuln/detail/CVE-2018-15840
nvd.nist.gov

Timeline

Published
Mar 29, 2019
Last Updated
Nov 21, 2024

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2018-15840 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows