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CVE-2025-8956

D-Link DIR‑818L ssdpcgi cgibin getenv command injection

HIGH
8.8
CVSS Score
Published: August 14, 2025 at 10:02 AM UTC
Updated: June 17, 2026 at 10:08 AM UTC
2 products affected across 1 vendorDir 818L FirmwareDir-818L

Using DIR‑818L by D-Link?

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Severity
HIGH8.8
Exploit prediction
EPSS 23%
SSVC
PoC

Description

A vulnerability was found in D-Link DIR‑818L up to 1.05B01. This issue affects the function getenv of the file /htdocs/cgibin of the component ssdpcgi. The manipulation leads to command injection. The attack may be initiated 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.

Dir 818L Firmware· D-Link
95%
1.05B1105b01
dlink-dir-818l (same device)
Dir-818L· D-Linkdevice
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)

ExploitThird Party Advisory
Source: [email protected]
https://github.com/LonTan0/CVE/blob/main/Remote%20Arbitrary%20Command%20Execution%20Vulnerability%20in%20ssdpcgi%20of%20D-Link%20DIR%E2%80%91818L.md
SignaturePermissions RequiredVDB Entry
Source: [email protected]
https://vuldb.com/?ctiid.319925
VDB EntryTechnical DescriptionThird Party Advisory
Source: [email protected]
https://vuldb.com/?id.319925
Third Party AdvisoryVDB Entry
Source: [email protected]
https://vuldb.com/?submit.627835
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

8.8HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-74CWE-77

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