HighPublic exploit

Unauthenticated RCE via XXE in Lantronix Provisioning Manager

IdentifiersCVE-2025-7766CWE-611· Improper Restriction of XML…

CVE-2025-7766 is an XML External Entity (XXE) vulnerability in Lantronix Provisioning Manager. The product processes configuration files supplied by network devices, and insufficiently secure XML parsing allows external entities to be resolved. A maliciously crafted configuration file from a device can therefore trigger XXE during parsing on the host running Provisioning Manager. According to the provided description, successful exploitation can lead to unauthenticated remote code execution on hosts with Provisioning Manager installed.

For your environment

Are you exposed to this one?

Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.

Start free trial

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 allows an unauthenticated remote attacker to achieve remote code execution on the system hosting Lantronix Provisioning Manager. This can result in full compromise of the management host, including execution of arbitrary commands or payloads in the security context of the Provisioning Manager process, with potential follow-on impacts such as data access, persistence, lateral movement, and disruption of provisioning operations.

Mitigation

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

Treat all device-supplied configuration files as untrusted input. As an interim mitigation, disable XML external entity resolution and DTD processing wherever configurable, restrict or isolate Provisioning Manager from untrusted or unmanaged devices, and place the management host on a segmented network with tightly controlled inbound device communications. Use least-privilege execution for the Provisioning Manager service, restrict outbound network access from the host to reduce XXE-related retrieval paths, and monitor for anomalous configuration submissions or unexpected parser/network activity associated with XML processing.

Remediation

Patch, then assume compromise.

Apply the vendor-provided security update or fixed release for Lantronix Provisioning Manager that addresses CVE-2025-7766. The underlying issue should be remediated by disabling external entity resolution and DTD processing in the XML parser used for device-supplied configuration files, and by hardening parsing logic for untrusted XML input. If a vendor patch is not yet available, remediation information is currently not available beyond implementing mitigations and limiting exposure.

PUBLIC EXPLOITS

Exploits

1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos (1 hidden).

VALID 1 / 2 TOTALView more in app

CVE-2025-7766MaturityPoCVerified exploit

This repository contains a proof-of-concept (PoC) exploit for CVE-2025-7766, an XML External Entity (XXE) vulnerability that allows remote code execution or file disclosure. The main exploit is implemented in C (exploit.c) and uses libcurl and argparse for HTTP requests and argument parsing. The exploit targets a remote XML endpoint (e.g., http://target/xml) and can: - Read arbitrary files from the target system (demonstrated with /etc/passwd) by injecting a malicious XML payload. - Trigger out-of-band HTTP requests from the target to an attacker-controlled server, confirming the XXE vulnerability and enabling data exfiltration. - Accept custom XML payloads and repeat requests for testing purposes. The README.md provides clear usage instructions and describes the exploit's capabilities. No hardcoded IPs or domains are present; the attacker supplies their own server details. The code is a functional PoC, not weaponized, and is intended for security testing and demonstration of the vulnerability.

byteReaper77Disclosed Jul 23, 2025cnetwork

ACTIVITY FEED

Recent activity

6 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.

6 SOURCESView more in app

No news coverage yet. Advisories and community discussion only.

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.

Start free trial

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 activity6