CVE-20XX-?
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CVE-2026-12339

6.9 MEDIUM 0.5% exploit odds No fix listed Disclosure

What it is

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.

At a glance

Exploitability
Can be exploited from the same network segment with an admin-level account. High risk of data tampering.
Exploit odds
0.5% chance of exploitation in the next 30 days (EPSS).
Fix
No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

  1. PublishedDisclosed publicly on CVE.org and NVD
  2. Last updatedMost recent change to the record

Why it ranks here

Details

Published
Last modified
Exploit probability
0.5% · EPSS, next 30 days
Weakness
CWE-22 · Path traversal
Record status
Awaiting Analysis

Attack profile CVSS 4.0 · 6.9

Attack vector
Adjacent network
Complexity
Low
Attack requirements
None
Privileges needed
High
User interaction
None
Confidentiality
None
Integrity
High
Availability
Low
Raw vector

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

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2026-12339.md and follow it. Check whether this project is affected by CVE-2026-12339. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Meme: I wake up, CVE-2026-12339
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References

NVD record · CVE.org record