An improper handling of exceptional conditions vulnerability exists within the Connect Before Logon feature of the Palo Alto Networks GlobalProtect app that enables a local attacker to escalate to SYSTEM or root privileges when authenticating with Connect Before Logon under certain circumstances. This issue impacts GlobalProtect app 5.2 versions earlier than GlobalProtect app 5.2.9 on Windows and MacOS. This issue does not affect the GlobalProtect app on other platforms.
CVE-2022-0016
This high-severity CVE scores 7.4 under NVD CVSS v3. EPSS exploit probability: 0.0%, top 88% 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).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.4
- EG Score
- 7.4(medium)
- EPSS
- 11.1%
- KEV
- Not listed
Published
February 10, 2022
Last Modified
November 21, 2024
References (2)
- psirt@paloaltonetworkshttps://security.paloaltonetworks.com/CVE-2022-0016
- af854a3a-2127-422b-91ae-364da2661108https://security.paloaltonetworks.com/CVE-2022-0016
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 12× in last 7d / 46× 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.
- 2026-07-11 08:25 UTCEPSS rescore
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- 2026-06-24 14:03 UTCEPSS rescore
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- 2026-06-10 13:20 UTCEPSS rescore
- 2026-06-08 14:15 UTCEPSS rescore
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- 2026-06-07 15:23 UTCEPSS rescore
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- 2026-06-06 13:46 UTCEPSS rescore
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- 2026-06-01 13:50 UTCEPSS rescore
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- 2026-05-31 22:29 UTCEPSS rescore
- 2026-05-31 00:15 UTCEPSS rescore
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- 2026-05-29 13:42 UTCEPSS rescore
- 2026-05-28 13:43 UTCEPSS rescore
- 2026-05-28 13:43 UTCEPSS rescore
- 2026-05-27 13:39 UTCEPSS rescore
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- 2026-05-26 13:43 UTCEPSS rescore
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- 2026-05-26 07:17 UTCEPSS rescore
- 2026-05-26 07:17 UTCEPSS rescore
- 2026-05-26 03:17 UTCEG score recompute
- 2026-05-26 03:17 UTCGHSA enrichment
- 2026-05-24 01:07 UTCOSV refresh
Frequently asked(5)
What is CVE-2022-0016?
When was CVE-2022-0016 disclosed?
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What is the CVSS score of CVE-2022-0016?
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Dependency Blast Radius
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