CVE-2026-6902Network attack vector

Remote code execution via unvalidated server instructions

Published May 18, 2026 · Updated May 18, 2026

Code injection in the P4 command-line client before 2025.2 Patch 2 allows remote attackers to execute code through a malicious server response. The client accepts unbound protocol handler instructions that write P4LOGINSSO into a configuration file, then launches its value as a shell command. Exploitation requires a user to connect to an attacker-controlled server or run P4 in a project whose hidden configuration redirects the client there; code runs with that user's privileges.

CVSS severity7.7
High
EPSS probability0.46%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in the P4 command-line client before 2025.2 Patch 2 allows remote attackers to execute code through a malicious server response. The client accepts unbound protocol handler instructions that write P4LOGINSSO into a configuration file, then launches its value as a shell command. Exploitation requires a user to connect to an attacker-controlled server or run P4 in a project whose hidden configuration redirects the client there; code runs with that user's privileges.

The record

CVE
CVE-2026-6902
Published
May 18, 2026
Updated
May 18, 2026
Vendor
BlazeMeter
Product
P4
Classifications
CWE-94, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 18, 2026CVE publishedPublication date reported by the CVE source.
  2. May 18, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=0 <P4 (Helix Core) 2025.2 Patch 2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

BlazeMeter · P4version=0 <P4 (Helix Core) 2025.2 Patch 2

Published CVSS scores

7.7PerforceCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

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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