Dashboard / CVE-2026-12339

CVE-2026-12339

MEDIUM
MEDIUM Priority: 0.04 BB Relevance: 44/100
Published: 2026-08-10 Modified: 2026-10-23 First seen: 2026-10-29 Status: active

Attack Surface

Adjacent Low Complexity No Interaction Integ. Impact

CVSS Vector Breakdown

AV: Adjacent
AC: Low
PR: High
UI: None
S: X
AT: None
VC: None
VI: High
VA: Low

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 be overwritten on the underlying system, affecting system integrity and availability.

Weakness Classification (1)

References & Advisories (8)

Bug Bounty Relevance

44 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

6.9 / 10.0 v4.0
CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/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

EPSS — Exploitation Probability

0.53%
Raw Score 0.005250
Percentile 44.4%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00525
2026-10-28
0.00525

Intelligence Sources

nvd ref →

External Links