CriticalPublic exploit

Command injection in BYTEVALUE Intelligent Flow Control Router

IdentifiersCVE-2023-7311CWE-78· Improper Neutralization of Special…

CVE-2023-7311 is an OS command injection vulnerability in the BYTEVALUE Intelligent Flow Control Router's webRead open endpoint. The endpoint improperly validates the path parameter and echoes its value into a shell context, allowing a remote, unauthenticated attacker to execute arbitrary shell commands without user interaction. Exploitation can enable backdoor installation, host privilege escalation, and full compromise of the router and its management functions. The RondoDox botnet campaign has targeted this vulnerability. Specific affected releases and a fixed version are not identified.

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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 permits arbitrary shell command execution on the router. This can enable backdoor installation, privilege escalation on the host, and full compromise of the device and its management functions.

Mitigation

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

Restrict access to the router management interface and specifically the /goform/webRead/open endpoint to trusted administrative networks only. Do not expose the management plane directly to the internet. Use network ACLs, firewall rules, VPN-only administration, and segmentation to limit reachability. Monitor for suspicious requests containing shell metacharacters or anomalous values in the path parameter, and review devices for indicators of botnet activity or unauthorized persistence. If immediate patching is not possible, disable or isolate affected management functionality where feasible.

Remediation

Patch, then assume compromise.

Apply the vendor-provided security update or fixed firmware for BYTEVALUE Intelligent Flow Control Router if available. If no patch is available, replace affected devices with supported firmware or hardware that is not vulnerable. Review the /goform/webRead/open functionality and ensure the path parameter is no longer passed into a shell context without strict validation and safe handling. After remediation, inspect devices for signs of compromise, including unauthorized backdoors, modified startup scripts, unexpected processes, and altered management settings.

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.

ACTIVITY FEED

Recent activity

4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

4 SOURCESView more in app

cveNews

Jan 1, 2026

CVE Record: CVE-2023-7311

A critical command injection vulnerability in BYTEVALUE Intelligent Flow Control Router allows unauthenticated remote attackers to execute arbitrary shell commands through the improperly validated path parameter at /goform/webRead/open. Exploitation can enable backdoor installation, privilege escalation, and complete compromise of the router and its management functions. The record assigns a CVSS v4.0 score of 9.3 and identifies the vulnerability as known exploited.

vulncheck blogNews

Dec 4, 2025

Frost Checks First: Selective Exploitation

A vulnerability in BYTEVALUE routers, exploited by the frost malware.

What this page doesn’t show

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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 malware3

Malware families riding this exploit, with evidence and IOCs.

Detection signatures1

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 activity2