CVE-2026-0309

MEDIUMPre-NVD 4.04.0—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 4.0 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 62% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
4.0EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.0Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A command injection vulnerability in Palo Alto Networks PAN-OS® software enables an authenticated administrator to bypass system restrictions and run arbitrary commands as a root user. To be able to exploit this issue, the user must have access to the PAN-OS CLI and the device must be configured with a Luna Hardware Security Module (HSM).

The security risk posed by this issue is significantly minimized when CLI access is restricted to a limited group of administrators.

Panorama, Cloud NGFW, and Prisma® Access are not impacted by this vulnerability.

CVSS v3
4.0
EG Score
4.0(medium)
EG Risk
18(Track)
EG Risk 18/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity40% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
38%
KEV
Not listed

Published

September 10, 2026

Last Modified

September 11, 2026

Advisory Details (1)

Auto-updated Sep 10, 2026
No patch confirmed yet.
generic

CVE-2026-0309 PAN-OS: Authenticated Command Injection in CLI with Luna HSM Configuration

https://security.paloaltonetworks.com/CVE-2026-0309

Vendor Advisories for CVE-2026-0309(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 16× in last 7d / 33× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-18 19:27 UTCEPSS rescore
  2. 2026-09-18 18:35 UTCGHSA enrichment
  3. 2026-09-17 20:04 UTCEG score recompute
  4. 2026-09-17 20:04 UTCGHSA enrichment
  5. 2026-09-16 19:18 UTCEG score recompute
  6. 2026-09-16 19:18 UTCGHSA enrichment
  7. 2026-09-16 05:14 UTCEPSS rescore
  8. 2026-09-15 20:50 UTCEG score recompute
  9. 2026-09-15 20:50 UTCGHSA enrichment
  10. 2026-09-14 22:14 UTCGHSA enrichment
  11. 2026-09-13 23:44 UTCEG score recompute
  12. 2026-09-13 23:44 UTCGHSA enrichment
  13. 2026-09-13 16:46 UTCEPSS rescore
  14. 2026-09-13 01:17 UTCEG score recompute
  15. 2026-09-13 01:17 UTCGHSA enrichment
  16. 2026-09-12 15:00 UTCEPSS rescore
  17. 2026-09-12 02:49 UTCEG score recompute
  18. 2026-09-12 02:49 UTCGHSA enrichment
  19. 2026-09-11 14:52 UTCEPSS rescore
  20. 2026-09-11 09:36 UTCEPSS rescore
  21. 2026-09-11 04:21 UTCEG score recompute
  22. 2026-09-11 04:21 UTCGHSA enrichment
  23. 2026-09-11 04:00 UTCEG score recompute
  24. 2026-09-11 04:00 UTCGHSA enrichment
  25. 2026-09-10 14:57 UTCGHSA enrichment
Show 8 more
  1. 2026-09-10 14:20 UTCEG score recompute
  2. 2026-09-10 14:20 UTCGHSA enrichment
  3. 2026-09-10 13:21 UTCEG score recompute
  4. 2026-09-10 13:21 UTCGHSA enrichment
  5. 2026-09-10 06:35 UTCEG score recompute
  6. 2026-09-10 06:35 UTCGHSA enrichment
  7. 2026-09-10 05:50 UTCEG score recompute
  8. 2026-09-10 05:49 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-0309?
CVE-2026-0309 is a medium vulnerability published on September 10, 2026. A command injection vulnerability in Palo Alto Networks PAN-OS® software enables an authenticated administrator to bypass system restrictions and run arbitrary commands as a root user. To be able to exploit this issue, the user must have access to the PAN-OS CLI and the device must be configured…
When was CVE-2026-0309 disclosed?
CVE-2026-0309 was first published in the National Vulnerability Database on September 10, 2026, with the most recent update on September 11, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-0309 actively exploited?
CVE-2026-0309 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 61.7% of all scored CVEs.
What is the CVSS score of CVE-2026-0309?
CVE-2026-0309 has a CVSS v3 base score of 4.0 (NVD).
How do I remediate CVE-2026-0309?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-0309, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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