CVE-2026-2630
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedA Command Injection vulnerability exists where an authenticated, remote attacker could execute arbitrary code on the underlying server where Tenable Security Center is hosted.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceCommand Injection vulnerability in Tenable Security Center allowing an authenticated, remote attacker to execute arbitrary code on the underlying host server. The attacker needs valid credentials to exploit this flaw, but can then inject and execute commands with the privileges of the application.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
-
Identify if Tenable Security Center is installedCheck for Tenable Security Center processes running on the host (e.g., 'SecurityCenter' process, or look for installation directories like /opt/sc, /opt/Tenable/SecurityCenter, or C:\Program Files\Tenable\SecurityCenter)Affected if Tenable Security Center is installed and running on the system
-
Determine the installed versionCheck the version of Tenable Security Center. On Linux, run: rpm -q SecurityCenter or ls /opt/sc/etc/version 2>/dev/null. On Windows, check the application version via the UI or in the registry at HKLM\SOFTWARE\Tenable\SecurityCenter\VersionAffected if The installed version is within the affected range and has not been patched
-
Verify remote authentication is enabledReview Security Center configuration for enabled authentication methods (LDAP, Active Directory, local accounts) and check if remote access is permitted in /opt/sc/etc/securitycenter.conf or through the web interface under Users > AuthenticationAffected if Remote authentication is enabled, allowing external attackers to potentially obtain valid credentials
-
Check for suspicious command executionReview system logs and Tenable Security Center audit logs for unusual commands. Look in /opt/sc/logs/ (Linux) or C:\ProgramData\Tenable\SecurityCenter\logs\ (Windows) for unexpected system commands, especially from the 'SecurityCenter' user accountAffected if Audit logs show unexpected or unauthorized commands executed with application privileges
-
Inspect for unauthorized user accountsExamine the Security Center user database for unexpected accounts: query the database (e.g., SELECT username FROM users) or review user list via the web interface under Users > UsersAffected if Unexpected administrative or privileged accounts exist that may indicate compromise
You are affected if Tenable Security Center is running with an unpatched version and remote authentication is enabled, allowing authenticated attackers to inject and execute commands with application privileges.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataApply vendor-provided patches/updates for Tenable Security Center as soon as they are released. Limit the number of user accounts with administrative access and follow least-privilege principles to reduce the impact of credential compromise.
- Consultation3.0 h
- Implementation4.0 h
- Testing6.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,128.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-2630 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-2630 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data