MEDIUM SEVERITY

CVE-2020-2039

Pan Os vulnerability

CVSS
5.3
EPSS
46.4%
EPSS pct
99th
Exploited
No known
An uncontrolled resource consumption vulnerability in Palo Alto Networks PAN-OS allows for a remote unauthenticated user to upload temporary files through the management web interface that are not properly deleted after the request is finished. It is possible for an attacker to disrupt the availability of the management web interface by repeatedly uploading files until available disk space is exhausted. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.16; PAN-OS 9.0 versions earlier than PAN-OS 9.0.10; PAN-OS 9.1 versions earlier than PAN-OS 9.1.4; PAN-OS 10.0 versions earlier than PAN-OS 10.0.1.
Affected vendor
Paloaltonetworks
Affected product
Pan Os
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness type (CWE)
  • CWE-400 — Uncontrolled Resource Consumption
Published
2020-09-09

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to low impact to availability.

Its EPSS score of 46.4% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it among the most exploited CVEs currently tracked.

Check your external exposure to CVE-2020-2039

  • Confirm whether Paloaltonetworks Pan Os is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2020-2039.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2020-2039

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