A arbitrary file write vulnerability exists in the boa formUploadFile functionality of X2000R (version(s): TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327). (CVE-2026-9827)
Description
An arbitrary file write vulnerability exists in the boa formUploadFile functionality of TOTOLINK X2000R firmware version TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327. This vulnerability allows an authenticated attacker to send a specially crafted HTTP request that can lead to arbitrary code execution on the device. The vulnerability is critical with a CVSS score of 9.1.
CVSS v3.1
Score 9.1critical
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-9827 describes an arbitrary file write vulnerability in the boa formUploadFile functionality of the TOTOLINK X2000R device running firmware version TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327. An attacker with authentication privileges can exploit this vulnerability by sending a specially crafted HTTP request, resulting in arbitrary code execution. The vulnerability is classified under CWE-22 (Improper Limitation of a Pathname to a Restricted Directory). No patch or remediation details are provided in the available data.
Potential Impact
Successful exploitation allows an authenticated attacker to write arbitrary files on the device, leading to full compromise via arbitrary code execution. This can result in complete control over the affected device, impacting confidentiality, integrity, and availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict authenticated access to the device and monitor for suspicious activity related to HTTP requests targeting the formUploadFile functionality.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-p8wc-w2r7-2875
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-9827"]
- Database Specific Severity
- CRITICAL
- Cvss Version
- 3.1
Threat ID: 6ad7ec0f2cdf04f6566aefa8
Added to database: 10/20/2026, 22:32:47 UTC
Last enriched: 10/20/2026, 22:34:54 UTC
Last updated: 10/21/2026, 00:28:11 UTC
Views: 3
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.