TP-LINK TL-WR840N(ES)_V6.20_180709 was discovered to contain a remote code execution (RCE) vulnerability via the function oal_wan6_setIpAdd…

published 2022-02-25 4 y ago modified 2026-07-09 4 mo ago also EUVD-2022-29808

cvss: 9.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 36.5%; EPSS 36.5% chance of exploitation in 30 days, percentile 98%
public exploits: 0; none known

TP-LINK TL-WR840N(ES)_V6.20_180709 was discovered to contain a remote code execution (RCE) vulnerability via the function oal_wan6_setIpAddr.

Exploit prediction

36.47% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

east-trowel-102.notion.site https://east-trowel-102.notion.site/CVE-2021-XXXX-rce-via-crafted-payload-in-an-ipv6-address-input-field-hidden-EN-98e24b6f841043fba17ec4627c34f5d1 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	7.5	AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness

CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

east-trowel-102.notion.site /CVE-2021-XXXX-rce-via-crafted-payload-in-an-ipv6-address-input-field-hidden-EN-98e24b6f841043fba17ec4627c34f5
exploit, third-party-advisory

Sources

CVE List CVE-2022-25064
NVD CVE-2022-25064

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary