TOTOLINK X2000R formMapDel command injection

published 2025-06-03 17 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-16766

cvss: 6.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 3.4%; EPSS 3.4% chance of exploitation in 30 days, percentile 89%
public exploits: 0; none known

A vulnerability, which was classified as critical, has been found in TOTOLINK X2000R 1.0.0-B20230726.1108. Affected by this issue is some unknown functionality of the file /boafrm/formMapDel. The manipulation of the argument devicemac1 leads to command injection. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 17 mo ago (2025-06-03)

Exploit prediction

3.44% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/fizz-is-on-the-way/Iot_vuls/blob/main/X2000R/RCE_formMapDel/RCE_formMapDel.md referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	5.3	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
CNA	3.1	6.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CNA	3.0	6.3	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CNA	2.0	6.5	AV:N/AC:L/Au:S/C:P/I:P/A:P
CNA	4.0	5.3	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

TOTOLINK X2000R

Classification

Weakness

CWE-77 Improper Neutralization of Special Elements used in a Command
CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component

References

github.com /fizz-is-on-the-way/Iot_vuls/blob/main/X2000R/RCE_formMapDel/RCE_formMapDel.md
exploit, third-party-advisory
vuldb.com /?id.310952
vdb-entry, technical-description, third-party-advisory
vuldb.com /?ctiid.310952
signature, permissions-required, vdb-entry
vuldb.com /?submit.584653
third-party-advisory, vdb-entry
totolink.net /
product

Sources

CVE List CVE-2025-5515
NVD CVE-2025-5515

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