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Critical severity9.8NVD Advisory· Published Sep 9, 2020· Updated Jun 17, 2026

CVE-2020-2040

CVE-2020-2040

Description

A buffer overflow vulnerability in PAN-OS allows an unauthenticated attacker to disrupt system processes and potentially execute arbitrary code with root privileges by sending a malicious request to the Captive Portal or Multi-Factor Authentication interface. This issue impacts: All versions of PAN-OS 8.0; PAN-OS 8.1 versions earlier than PAN-OS 8.1.15; PAN-OS 9.0 versions earlier than PAN-OS 9.0.9; PAN-OS 9.1 versions earlier than PAN-OS 9.1.3.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

3
  • Paloaltonetworks/Pan OS3 versions
    cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*range: >=8.0.0,<=8.0.20
    • (no CPE)range: 8.0.x, <8.1.15, <9.0.9, <9.1.3
    • (no CPE)range: 8.0.*

Patches

Vulnerability mechanics

References

1

News mentions

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