CVE-2017-15944 — Palo Alto Networks PAN-OS Remote Code Execution Vulnerability

In brief

Severity · CVSS: Critical9.8CVSS 3.1, Critical
EPSS: 98%
CISA KEV: Known exploited, listed since 18 Aug 2022
CERT-FR: No advisory or alert referenced in the catalog
Vendor: Palo Alto Networks
Published · Modified: 11 Dec 2017 · 17 Jun 2026
Last verified: 1 Oct 2026 at 09:31 UTC

Summary

Palo Alto Networks PAN-OS before 6.1.19, 7.0.x before 7.0.19, 7.1.x before 7.1.14, and 8.0.x before 8.0.6 allows remote attackers to execute arbitrary code via vectors involving the management interface.

Weakness: CWE-20, CWE-119

Title, description and the vendor's statements are quoted from the CVE record; a vendor's advisory is summarised in Patcharo's words, with a link.

Affected and fixed versions

Per product and release branch, as the vendor's CVE record and official advisory state them. A fixed release is shown only when a document names it: the vendor's, or CERT-FR's for Check Point, with its source.

No precise fixed release is published in the sources Patcharo follows.

Remediation

Vendor guidance

CISA KEV required action

Apply updates per vendor instructions.

CISA due date: 8 Sept 2022

SourceCISA KEV

Vendor advisory

The vendor has published an advisory for this CVE: check it for fixed releases and mitigations.

Sourcehttps://security.paloaltonetworks.com/CVE-2017-15944

Last verified 1 Oct 2026 at 09:31 UTC

Known exploitation

Added to CISA KEV on 18 Aug 2022

Federal remediation due date: 8 Sept 2022

The CISA required action is shown under Remediation.

98% probability of exploitation in the next 30 days (percentile 100%).

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CERT-FR

No CERT-FR advisory or alert of the last two years references this CVE, for the vendors Patcharo covers.

Timeline

11 Dec 2017Published by the source
18 Aug 2022Added to CISA KEV
8 Sept 2022CISA remediation due date
17 Jun 2026Source record last modified
27 Sept 2026EPSS score computed
1 Oct 2026Last verified by Patcharo

Official sources

CVE Program recordretrieved 1 Oct 2026 at 09:31 UTC
CISA Known Exploited Vulnerabilitiesretrieved 1 Oct 2026 at 09:28 UTC
NVDretrieved 27 Sept 2026 at 23:44 UTC
FIRST EPSSretrieved 27 Sept 2026 at 23:46 UTC

Known exploited

Vendor advisory

https://security.paloaltonetworks.com/CVE-2017-15944

References

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-15944

CVE Program record · CISA Known Exploited Vulnerabilities · NVD · FIRST EPSS

How Patcharo reads this

Affected and fixed releases come from the vendor's structured statements and are matched against exact versions; CVSS from NVD, exploitation from CISA KEV and the vendor's own advisory, probability from FIRST EPSS. Missing data stays Unknown and never becomes Not affected.

Read the methodology Read the guide: PAN-OS versions explained: release lines, maintenance releases and the -h1, -h2, -h3 suffixes