CVE-2020-2033

5.3 MEDIUM 0.9% exploit odds Fix listed

What it is

When the pre-logon feature is enabled, a missing certification validation in Palo Alto Networks GlobalProtect app can disclose the pre-logon authentication cookie to a man-in-the-middle attacker on the same local area network segment with the ability to manipulate ARP or to conduct ARP spoofing attacks. This allows the attacker to access the GlobalProtect Server as allowed by configured Security rules for the 'pre-login' user. This access may be limited compared to the network access of regular users. This issue affects: GlobalProtect app 5.0 versions earlier than GlobalProtect app 5.0.10 when the prelogon feature is enabled; GlobalProtect app 5.1 versions earlier than GlobalProtect app 5.1.4 when the prelogon feature is enabled.

At a glance

Exploitability: Can be exploited from the same network segment without logging in. High risk of data exposure.
Exploit odds: 0.9% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2020-06-10 18:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 03:11 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.9% in the next 30 days (EPSS).
Severity: 5.3 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2020-06-10 18:15 UTC
Last modified: 2026-06-17 03:11 UTC
Exploit probability: 0.9% · EPSS, next 30 days
Weakness: CWE-290
Record status: Modified

Affected

Paloaltonetworks Globalprotect < 5.0.10
Paloaltonetworks Globalprotect < 5.1.4

Attack profile CVSS 3.1 · 5.3

Attack vector: Adjacent network
Complexity: High
Privileges needed: None
User interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: None
Availability: None

Raw vector

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

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2020-2033.md and follow it. Check whether this project is affected by CVE-2020-2033. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record