CVE-2026-64878Network attack vector

Authenticated code execution via asset-filter injection

Published Jul 21, 2026 · Updated Jul 21, 2026

Command injection in Tenable Security Center 6.6.0 through 6.8.0 allows remote authenticated users to execute code via the Analysis REST endpoint. Asset filter parameters reach command argument handling without validation, allowing shell metacharacters to escape the intended argument boundary. A low-privileged Security Center account is required, and injected commands execute as a low-privileged operating-system user on the Linux server.

CVSS severity9.4
Critical
EPSS probability0.80%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in Tenable Security Center 6.6.0 through 6.8.0 allows remote authenticated users to execute code via the Analysis REST endpoint. Asset filter parameters reach command argument handling without validation, allowing shell metacharacters to escape the intended argument boundary. A low-privileged Security Center account is required, and injected commands execute as a low-privileged operating-system user on the Linux server.

The record

CVE
CVE-2026-64878
Published
Jul 21, 2026
Updated
Jul 21, 2026
Vendor
Tenable
Product
Tenable Security Center
Classifications
CWE-78, T1059.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 21, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 21, 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 <6.8.0 changes=[{"at":"Patch SC202607.1","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Tenable · Tenable Security Centerversion=0 <6.8.0 changes=[{"at":"Patch SC202607.1","status":"unaffected"}]

Published CVSS scores

9.9Tenable Network Security, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
8.9Tenable Network Security, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
9.4Tenable Network Security, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059.004Unix Shell

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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