CVE-2026-109107

Wavlink WL-WN592AX6 upload.cgi main null pointer dereference

Assigner: VulDB
Reserved: 12.10.2026 Published: 13.10.2026 Updated: 13.10.2026

A weakness has been identified in Wavlink WL-WN592AX6 250422. Affected by this issue is the function main of the file /cgi-bin/upload.cgi. This manipulation of the argument Cookie causes null pointer dereference. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure.

Metrics

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
CVSS Score: 6.9

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	Low	Integrity	None
Attack Requirements	None	Availability	Low	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:P/RL:X/RC:C
CVSS Score: 6.5

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	None
Privileges Required	None	Integrity Impact	Low
User Interaction	None	Availability Impact	Low

CVSS 3.1

CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:P/RL:X/RC:C
CVSS Score: 6.5

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	None
Privileges Required	None	Integrity Impact	Low
User Interaction	None	Availability Impact	Low

CVSS 3.0

CVSS Vector: AV:N/AC:L/Au:N/C:N/I:P/A:P/E:POC/RL:ND/RC:C
CVSS Score: 6.4

Access Vector	Network	Confidentiality Impact	None
Access Complexity	Low	Integrity Impact	Partial
Authentication	None	Availability Impact	Partial

CVSS 2.0

Product Status

Vendor	Wavlink
Product	WL-WN592AX6
Versions	Version 250422 is affected

Vendor

Wavlink

Product

WL-WN592AX6

Versions

Version 250422 is affected

Credits

aissac (VulDB User) reporter
VulDB CNA Team coordinator

References

Problem Types