CVE-2019-17147
TP-Link · published 2020-01-07
Source record Collected from the National Vulnerability Database (NVD)
Description
Description by Zero Day Initiative via the CVE Program.
This vulnerability allows remote attackers to execute arbitrary code on affected installations of TP-LINK TL-WR841N routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the web service, which listens on TCP port 80 by default. When parsing the Host request header, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length static buffer. An attacker can leverage this vulnerability to execute code in the context of the admin user. Was ZDI-CAN-8457.
Filed by Zero Day Initiative; not a statement by TP-Link.
Status at the source
- NVD status: Modified
Affected products, as the source lists them
| Vendor | Product | Versions |
|---|---|---|
| TP-Link | TL-WR841N | 0.9.1 4.16 v007c.0 Build 180613 Rel.42415n: affected |
Products named in NVD's CPE match criteria (1)
cpe:2.3:o:tp-link:tl-wr841n_firmware:0.9.1_4.16:*:*:*:*:*:*:*
DeSpy has not checked any unit, hardware revision or firmware. A product missing here is not a statement that it is unaffected.
Scores, as their sources published them
- CVSS 3.1: 8.8 HIGH — as published by NIST (Primary)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 3.0: 8.8 HIGH — as published by Zero Day Initiative (Secondary)
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0: 9.3 HIGH — as published by NIST (Primary)
AV:N/AC:M/Au:N/C:C/I:C/A:C
DeSpy does not score records. These are the sources' own values.
Weaknesses
Sources
References the source lists
- https://www.tp-link.com/us/support/download/tl-wr841n/#Firmware
- https://www.zerodayinitiative.com/advisories/ZDI-19-992/
- https://www.tp-link.com/us/support/download/tl-wr841n/#Firmware
- https://www.zerodayinitiative.com/advisories/ZDI-19-992/
Source dates: published 2020-01-07, last changed 2026-06-17. DeSpy's copy of this version is dated 2026-09-28.
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