Skip to main content
VulnerabilityPublished Updated

CVE-2026-9827: Totolink · Path Traversal

Affects TotolinkSource CVE Database V5

0

Not known to be exploited · CVSS 9.1 Critical.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.1 base score
9.1Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.6% chance of exploitation in 30 days – higher than 50% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CISA SSVC
Exploitation
No evidence of active exploitation and no public proof of concept
Automatable
Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact
Total control over the software or total information disclosure

CISA SSVC assessment, 2026-10-23.

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 20 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
totolinkTotolinkAffected
  • =TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327
Fixed in–

AI-suggested

Until a fix is available, restrict authenticated access to the device and monitor for suspicious activity related to file uploads.

Description

CVE-2026-9827 is a critical vulnerability in the boa formUploadFile functionality of the TOTOLINK X2000R router (version TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327). It allows an authenticated attacker to perform a specially crafted HTTP request that leads to arbitrary file write and potentially arbitrary code execution via path traversal.

References

Community reviews

Loading reviews…