CVE-2026-7785Public exploitNetwork attack vector

Unauthenticated command execution via shell-evaluated interface

Published May 4, 2026 · Updated May 5, 2026

OS command injection in Arnab Gupta Wireshark MCP allows remote attackers to execute arbitrary commands through quick_capture. The tool interpolates its caller-controlled interface value into a command string and passes it to subprocess.Popen with shell=True without neutralizing shell metacharacters. The attacker must be able to invoke the MCP tool directly or through an exposed agent integration; commands run with the server process's permissions.

CVSS severity7.3
High
EPSS probability1.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Arnab Gupta Wireshark MCP allows remote attackers to execute arbitrary commands through quick_capture. The tool interpolates its caller-controlled interface value into a command string and passes it to subprocess.Popen with shell=True without neutralizing shell metacharacters. The attacker must be able to invoke the MCP tool directly or through an exposed agent integration; commands run with the server process's permissions.

The record

CVE
CVE-2026-7785
Published
May 4, 2026
Updated
May 5, 2026
Vendor
Arnab Gupta
Product
Wireshark MCP
Classifications
CWE-77, CWE-78, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 4, 2026CVE publishedPublication date reported by the CVE source.
  2. May 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=400c3da70074f22f3cce7ccb65304cafc7089c89
  2. Affected versionversion=edaf604416fbc94a201b4043092d4a1b09a12275

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Arnab Gupta · Wireshark MCPversion=400c3da70074f22f3cce7ccb65304cafc7089c89; version=edaf604416fbc94a201b4043092d4a1b09a12275

Published CVSS scores

7.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
5.5VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
7.5VulDBAV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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