CVE-2019-6989

highpriority · attend · 49EPSS 0.114 · 96 %ileexploit · PoCEURUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

11.4% (96th) EPSS

CVSS 9 · high

Is it mine?

5 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

TP-Link TL-WR940N is vulnerable to a stack-based buffer overflow, caused by improper bounds checking by the ipAddrDispose function. By sending specially crafted ICMP echo request packets, a remote authenticated attacker could overflow a buffer and execute arbitrary code on the system with elevated privileges.

cvss

Technical severity, 0–10. One row per scoring source.

9.0

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.09highAV:N/AC:L/Au:S/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 8 · impact 10

v3.08.8highCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 5.9

v3.08.3highCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)

v3.18.8highAV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USprimaryCWE-119US

exploits (1)

Public proof-of-concept and weaponised exploit code.

EDB-46678TP-LINK TL-WR940N / TL-WR941ND - Buffer OverflowPoC · exploit_db

affected products (5)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
TP-Link Technologies Co Ltd. TL-WR940Nall versionsfstec_bduRU
TP-Link Technologies Co Ltd. TL-WR941NDall versionsfstec_bduRU
tp-link tl-wr940n firmwareall versionsnvdUScpe:2.3:o:tp-link:tl-wr940n_firmware:*:*:*:*:*:*:*:*
tp-link tl-wr941nd firmwareall versionsnvdUScpe:2.3:o:tp-link:tl-wr941nd_firmware:*:*:*:*:*:*:*:*

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2019-06-06modified 2026-06-17

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+16120 more

references (9)

External citations — patches, advisories, analysis.

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