CVE-2025-3820

Tenda W12/i24 httpd cgiSysUplinkCheckSet stack-based overflow

HIGH
8.8
CVSS Score
Published: April 19, 2025 at 08:31 PM UTC
Updated: June 17, 2026 at 09:20 AM UTC
4 products affected across 1 vendorW12 FirmwareI24 FirmwareW12

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Severity
HIGH8.8
Exploit prediction
EPSS 13%
SSVC
PoC

Description

A vulnerability was found in Tenda W12 and i24 3.0.0.4(2887)/3.0.0.5(3644) and classified as critical. Affected by this issue is the function cgiSysUplinkCheckSet of the file /bin/httpd. The manipulation of the argument hostIp1/hostIp2 leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

80%
All versions
80%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (5)

ExploitIssue TrackingThird Party Advisory
https://github.com/02Tn/vul/issues/4
SignaturePermissions RequiredVDB Entry
https://vuldb.com/?ctiid.305726
VDB EntryTechnical DescriptionThird Party Advisory
https://vuldb.com/?id.305726
Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.555728

SSVC — Action Prioritization

SSVCPoCAutomatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHVulDB
Vector?

Quick Info

StatusANALYZED
CWE
CWE-119CWE-121

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