CVE-2020-2033General(paloaltonetworks / globalprotect)

LOWCVSS 5.3 · MEDIUM

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

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.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-290CWE-295

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • globalprotect

Threat summary

  • 2 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • General: 2 classified signals
  • 2 total mentions across 1 day

Affected systems

Products
globalprotect

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-05-21: 2Technical Details · 2026-05-21: 105-21
Signal classification1 categories
General
2100.0%
Referenced assets1 URL
By indicator
Full discourse2 posts
  • Nathan McNulty@NathanMcNulty
    General

    CVE-2020-2033, CVE-2020-2021, CVE-2020-2050, CVE-2026-0257, and now CVE-2026-0265 Authentication bypass, as in direct access to your internal networks over the Internet This VPN architecture should be dead, get it off the Internet, it's a time bomb waiting to happen

    Post summary

    The post lists several CVEs with a generic warning about authentication bypass on VPNs, but provides no proof‑of‑concept, exploit details, patches, or evidence of active exploitation.

    4596452212113.6K
    18.5K followersView on X
  • CVETrends@CVEShield
    General

    Top 5 Trending CVEs: 1 - CVE-2026-42945 2 - CVE-2026-46333 3 - CVE-2026-0265 4 - CVE-2020-2033 5 - CVE-2026-33278 #cve #cvetrends #cveshield #cybersecurity https://www.cveshield.com/dashboard

    Post summary

    The tweet merely lists five trending CVE identifiers without providing technical details, exploitation evidence, or mitigation guidance.

    00010203
    1.7K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Apppaloaltonetworksglobalprotect-windows-

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