Patchfirst
CVE-2026-9827 Critical · 9.1 EPSS 0.6%

A arbitrary file write vulnerability exists in the boa formUploadFile functionality of X2000R (version(s)…

totolink · Totolink

Summary

A path traversal flaw in the boa-based formUploadFile functionality of the Totolink X2000R router lets a crafted HTTP request write files to arbitrary locations, which can lead to code execution. An attacker needs network access to the device and must be authenticated to send the malicious request, with no user interaction required.

Official description · NVD

A arbitrary file write vulnerability exists in the boa formUploadFile functionality of X2000R (version(s): TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327). A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make an authenticated HTTP request to trigger this vulnerability.

Breakdown
18.3 / 100
Exploited
Not confirmed
Reports
0
Tactics
0/15

Disclosed on 20 Oct 2026. No public exploit code or confirmed exploitation is recorded.

techniques

No techniques linked

No ATT&CK techniques are linked to this CVE yet. MITRE CTID has not mapped it, and no report passage in the corpus ties it to a technique.

What security researchers reported

Not named in any threat report yet

Also mentioned in 6 community threat pulses (AlienVault OTX)

Weaker evidence

Pulses are indicator collections that anyone can publish. A mention is not confirmation of exploitation.

References

1 link, grouped by NVD tag
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