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Mallory
Critical

Unauthenticated unrestricted file upload leading to RCE in Airleader Master <= 6.381

IdentifiersCVE-2026-1358CWE-434· Unrestricted Upload of File with…

Airleader Master versions 6.381 and earlier contain an unrestricted file upload weakness across multiple web pages that run with maximum privileges. Due to insufficient restriction/validation of uploaded file types, an unauthenticated remote attacker can upload a dangerous file (e.g., server-executable content) and potentially achieve remote code execution on the server.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation can allow unauthenticated remote code execution with high impact to confidentiality, integrity, and availability (CVSS v3.1: 9.8; AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H). This may enable full compromise/control of the vulnerable Airleader Master server and disruption of industrial monitoring/optimization operations where deployed.

Mitigation

If you can’t patch tonight, do this now.

Reduce exposure per CISA guidance: ensure the product is not internet-accessible, segment/isolated ICS networks behind properly configured firewalls, and use hardened/updated VPNs for remote access. As compensating controls, restrict or disable upload functionality where feasible; enforce strict server-side allowlisting/validation of file types and content; store uploads outside the web root; remove execute permissions from upload directories; and require authentication/authorization on upload endpoints.

Remediation

Patch, then assume compromise.

Upgrade Airleader Master to a fixed version newer than 6.381 when available from the vendor, or apply the vendor-provided patch that addresses the unrestricted file upload condition on the affected web pages/components.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
Airleader GmbHAirleader Masterhardware
Airleader GmbHMasterapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity9

Community discussion across Reddit, Mastodon, and other social sources.