CVE-2026-5004

HIGH EPSS 48.0%
Published Mar 28, 20263mo ago · Modified Jun 17, 20261w ago
7.4 CVSS 4.0
High
Find Similar
Published Mar 28, 2026 3mo ago
Last Modified Jun 17, 2026 1w ago

Description

A vulnerability was determined in Wavlink WL-WN579X3-C 231124. This impacts the function sub_4019FC of the file /cgi-bin/firewall.cgi of the component UPNP Handler. Executing a manipulation of the argument UpnpEnabled can lead to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS Details

Base Score
7.4
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
48.0% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 3

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer Memory Safety
CWE-121
CWE-787 Out-of-bounds Write Memory Safety

Affected Products 2

VendorProductVersionRange
wavlinkwl-wn579x3-c_firmware231124any
wavlinkwl-wn579x3-c*any

References 4

  • github.com https://github.com/Litengzheng/vul_db/blob/main/WL-WN579X3-C/vul_200/README.md
    ExploitThird Party Advisory
  • vuldb.com https://vuldb.com/submit/779149
    Third Party AdvisoryVDB Entry
  • vuldb.com https://vuldb.com/vuln/353891
    Third Party AdvisoryVDB Entry
  • vuldb.com https://vuldb.com/vuln/353891/cti
    Permissions RequiredVDB Entry

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.