← Vulnerability feed

Vulnerability record · CVE-2018-15172 · published 15 August 2018

CVE-2018-15172: Tp-link tl-wr840n firmware memory buffer overflow vulnerability

Tp Link · Tl Wr840n Firmware

TP-Link WR840N devices have a buffer overflow via a long Authorization HTTP header.

7.5 CVSS 3.0 High EPSS 8.3% · top 5.3% CWE-119 · Memory buffer overflow
7.5CVSS 3.0 base score, v2 5.0
8.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

TP-Link WR840N devices have a buffer overflow via a long Authorization HTTP header.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://hackingvila.wordpress.com/2018/08/08/tp-link-buffer-overflow-via-a-long-authorization-http-header-cve-2018-15172 Permissions Required
https://www.exploit-db.com/exploits/45203/ ExploitThird Party AdvisoryVDB Entry
https://hackingvila.wordpress.com/2018/08/08/tp-link-buffer-overflow-via-a-long-authorization-http-header-cve-2018-15172 Permissions Required
https://www.exploit-db.com/exploits/45203/ ExploitThird Party AdvisoryVDB Entry

Track CVE-2018-15172 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

6.5CVE-2023-50224TP-Link router httpd authentication bypass exposes stored credentialsThe httpd service on affected TP-Link router firmware contains an improper authentication flaw (CWE-290) that lets a network-adjacent attacker bypass…KEVEPSS 16%analysed9.8CVE-2022-25060Tp-link tl-wr840n firmware os command injection vulnerabilityTP-LINK TL-WR840N(ES)_V6.20_180709 was discovered to contain a command injection vulnerability via the component oal_startPing.EPSS 40%9.8CVE-2022-25061TP-Link TL-WR840N router command injection in oal_setIp6DefaultRouteThe TP-Link TL-WR840N(ES) V6.20 firmware (build 180709) contains an OS command injection flaw in the oal_setIp6DefaultRoute component. Because the fl…EPSS 59%analysed9.8CVE-2022-25064Tp-link tl-wr840n firmware os command injection vulnerabilityTP-LINK TL-WR840N(ES)_V6.20_180709 was discovered to contain a remote code execution (RCE) vulnerability via the function oal_wan6_setIpAddr.EPSS 36%9.8CVE-2021-41653TP-Link TL-WR840N router PING function command injection RCEThe PING diagnostic function on the TP-Link TL-WR840N EU v5 router (firmware through TL-WR840N(EU)_V5_171211) fails to sanitize the IP address input …EPSS 76%analysed9.8CVE-2020-36178Tp-link tl-wr840n firmware os command injection vulnerabilityoal_ipt_addBridgeIsolationRules on TP-Link TL-WR840N 6_EU_0.9.1_4.16 devices allows OS command injection because a raw string entered from the web in…EPSS 9.7%9.8CVE-2018-11714TP-Link router CGI session handling bypass allows unauthenticated actionsTP-Link TL-WR840N v5 and TL-WR841N v13 routers mishandle sessions on the /cgi/ path. Sending a Referer header of http://192.168.0.1/mainFrame.htm cau…EPSS 68%analysed8.8CVE-2023-39471Tp-link tl-wr841n firmware os command injection vulnerabilityTP-Link TL-WR841N ated_tp Command Injection Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbi…EPSS 0.91%

Source: NIST National Vulnerability Database (record CVE-2018-15172), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.