CVE-2018-10139: Palo Alto Networks PAN-OS vulnerability

CVE-2018-10139: The PAN-OS response for GlobalProtect Gateway in Palo Alto Networks PAN-OS 6.1.21 and earlier, PAN-OS 7.1.1...

The PAN-OS response for GlobalProtect Gateway in Palo Alto Networks PAN-OS 6.1.21 and earlier, PAN-OS 7.1.18 and earlier, PAN-OS 8.0.11 and earlier may allow an unauthenticated attacker to inject arbitrary JavaScript or HTML. PAN-OS 8.1 is NOT affected.

UnknownCVSS not scoredNot KEV-listedUpdatedSep 17, 2024, 01:25 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2018-10139 affects older Palo Alto Networks PAN-OS GlobalProtect Gateway responses. An unauthenticated attacker may inject JavaScript or HTML into gateway content, creating browser-side risk for users who interact with the affected gateway. The bundle provides no CVSS score and no confirmed active exploitation. Exposure is most likely where legacy PAN-OS systems still run GlobalProtect Gateway on affected 6.1, 7.1, or 8.0 releases. Internet-facing remote access gateways deserve priority review because they are reachable by unauthenticated users. Schedule this for near-term remediation if legacy GlobalProtect Gateway systems remain exposed. It is not KEV-listed in the bundle, but unauthenticated browser-side injection on a remote access gateway is business-relevant. Mitigation focus: Identify all GlobalProtect Gateways and their PAN-OS versions.; Prioritize affected internet-facing gateways for remediation review.; Consult Palo Alto Networks advisory for supported upgrade guidance..

Prepared: Jun 7, 2026, 05:54 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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CVE-2018-10139 mapping review

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Aug 16, 2018, 18:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://security.paloaltonetworks.com/CVE-2018-10139CVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

Palo Alto NetworksPAN-OS6.1.21 and earlier, 7.1.18 and earlier, 8.0.11 and earlierListed

Weakness

CWE details

No CWE listed

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