CVE-2026-12339
NoneCVSS
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EPSS
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Published
Aug 10, 2026
CISA due date
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The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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