Tenda W12 Web Management httpd cgiSysWebTimeoutSet denial of service

published 2026-05-31 5 mo ago modified 2026-07-22 3 mo ago also EUVD-2026-33512

cvss: 6.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 30%
public exploits: 0; none known

A vulnerability was found in Tenda W12 3.0.0.7(4763). This issue affects the function cgiSysWebTimeoutSet of the file /bin/httpd of the component Web Management Interface. The manipulation of the argument web_over_time results in denial of service. It is possible to launch the attack remotely. The exploit has been made public and could be used.

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 5 mo ago (2026-06-01)

Exploit prediction

0.37% chance of exploitation in the next 30 days, higher than 30% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

vuldb.com https://vuldb.com/submit/820022 referenced PoC, tagged "exploit" by a source, unverified
cdn2.v50to.cc http://cdn2.v50to.cc/cgiSysWebTimeoutSet_dos.zip referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	7.1	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P
CNA	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:P/RL:X/RC:R
CNA	3.0	6.5	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:P/RL:X/RC:R
CNA	2.0	6.8	AV:N/AC:L/Au:S/C:N/I:N/A:C/E:POC/RL:ND/RC:UR
CNA	4.0	5.7	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/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
CNA	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CNA	2.0	6.8	AV:N/AC:L/Au:S/C:N/I:N/A:C

Affected products

Tenda W12

Classification

Weakness

CWE-404 Improper Resource Shutdown or Release

References

vuldb.com /submit/820022
third-party-advisory, exploit
cdn2.v50to.cc /cgiSysWebTimeoutSet_dos.zip
exploit
vuldb.com /vuln/367471
vdb-entry, technical-description
vuldb.com /vuln/367471/cti
signature, permissions-required
vuldb.com /cve/CVE-2026-10190
third-party-advisory
tenda.com.cn /
product

Sources

CVE List CVE-2026-10190
NVD CVE-2026-10190

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