CVE-2026-12339
Last modified
CVE-2026-12339 is a medium-severity vulnerability rated 6.9/10 on the CVSS scale. 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.. EPSS estimates a 0.31% chance of exploitation in the next 30 days.
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.
Metrics
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
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| TP-Link Systems Inc. | TL-MR6400 v5.3 | < (EU)_1.10.0 0.9.1 v0001.0 Build 260613 RC.76099n |
| TP-Link Systems Inc. | Archer MR600 v2 | < (EU)_1.10.0 0.9.1 v0001.0 Build 260618 RC.40417n |
| TP-Link Systems Inc. | Archer MR200 v7 | < (EU)_1.3.0 0.9.1 v0001.0 Build 260605 Rel.57870n |
References
Timeline
- Published
- Last Modified
- Status
- Received
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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