AUGUST 15, 2026
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Case File

CVE-2026-12339

MEDIUM · CVSS 6.9 EPSS 0.31% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-10 · Last synced 2026-08-15

CyberRota Analysis

AI-Generated

A Zip Slip vulnerability in the WebUI ISP upgrade functionality allows authenticated administrators to exploit crafted archives containing directory traversal sequences, enabling arbitrary file writes on the system. This could lead to unauthorized file overwrites, compromising system integrity and availability. Organizations using this WebUI ISP should prioritize remediation to mitigate potential risks associated with this vulnerability.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-12339
Severity
MEDIUM
CVSS
6.9
EPSS
0.31%

Original NVD Description

A Zip Slip vulnerability in the WebUI ISP Upgrade functionality allows arbitrary file write via a crafted archive containing directory traversal sequences. An authenticated administrator may overwrite arbitrary files on the system.Successful exploitation may allow arbitrary file to overwrite on the underlying system, affecting system integrity and availability.