CVE-2025-4731

TOTOLINK A3002R/A3002RU HTTP POST Request formPortFw buffer overflow

HIGH
8.8
CVSS Score
Published: May 16, 2025 at 12:00 AM UTC
Updated: June 17, 2026 at 09:33 AM UTC
4 products affected across 1 vendorA3002R FirmwareA3002RU FirmwareA3002R

Using A3002R by TOTOLINK?

Get instant alerts when new vulnerabilities affect A3002R - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH8.8
Exploit prediction
EPSS 0.8%
SSVC
No known exploit

Description

A vulnerability classified as critical has been found in TOTOLINK A3002R and A3002RU 3.0.0-B20230809.1615. This affects an unknown part of the file /boafrm/formPortFw of the component HTTP POST Request Handler. The manipulation of the argument service_type/ip_subnet leads to buffer overflow. It is possible to initiate the attack 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.

3.0.0-B20230809.16153.0.0-b20230809.1615
totolink-a3002ru (same device)
All versions
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)

SignaturePermissions RequiredVDB Entry
https://vuldb.com/?ctiid.309033
VDB EntryTechnical DescriptionThird Party Advisory
https://vuldb.com/?id.309033
Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.570688

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal 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-120

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card