CVE-2025-12258

TOTOLINK A3300R POST Parameter cstecgi.cg setOpModeCfg stack-based overflow

HIGH
8.8
CVSS Score
Published: October 27, 2025 at 09:32 AM UTC
Updated: October 8, 2026 at 11:10 AM UTC
2 products affected across 1 vendorA3300R FirmwareA3300R· also runs on 1 platform

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Severity
HIGH8.8
Exploit prediction
EPSS 1%
SSVC
No known exploit

Description

A vulnerability was detected in TOTOLINK A3300R 17.0.0cu.557_B20221024. Impacted is the function setOpModeCfg of the file /cgi-bin/cstecgi.cg of the component POST Parameter Handler. The manipulation of the argument opmode results in stack-based buffer overflow. The attack may be performed from remote.

Affected

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

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

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)

VDB EntryTechnical DescriptionThird Party Advisory
Source: cverecord
https://vuldb.com/?id.329929
SignaturePermissions Required
Source: cverecord
https://vuldb.com/?ctiid.329929
Third Party AdvisoryVDB Entry
Source: cverecord
https://vuldb.com/?submit.673725
Product
Source: cverecord
https://www.totolink.net/

SSVC — Action Prioritization

SSVCNo known exploitAutomatableTotal impact

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

CVSS

8.8HIGHVulDB
Vector?

Quick Info

StatusANALYZED
CWE
CWE-121CWE-119

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