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CVE-2025-6334

D-Link DIR-867 Query String strncpy stack-based overflow

HIGH
8.8
CVSS Score
Published: June 20, 2025 at 11:00 AM UTC
Updated: June 17, 2026 at 10:01 AM UTC
2 products affected across 1 vendorDir 867 FirmwareDIR-867

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Severity
HIGH8.8
Exploit prediction
EPSS 1.0%
SSVC
PoC

Description

A vulnerability has been found in D-Link DIR-867 1.0 and classified as critical. This vulnerability affects the function strncpy of the component Query String Handler. The manipulation leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

Affected

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

Dir 867 Firmware· D-Link
95%
1.0
dlink-dir-867 (same device)
DIR-867· D-Link
60%
1.0

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
Source: [email protected]
https://github.com/Thir0th/Thir0th-CVE/blob/main/DIR-867%20AC1750.md
SignaturePermissions RequiredVDB Entry
Source: [email protected]
https://vuldb.com/?ctiid.313330
VDB EntryTechnical DescriptionThird Party Advisory
Source: [email protected]
https://vuldb.com/?id.313330
Third Party AdvisoryVDB Entry
Source: [email protected]
https://vuldb.com/?submit.596579
Product
Source: [email protected]
https://www.dlink.com/

SSVC — Action Prioritization

SSVCPoCNot automatablePartial 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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