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CVE-2020-2020

Cortex XDR Agent: Exceptional condition denial-of-service (DoS)

Description

An improper handling of exceptional conditions vulnerability in Cortex XDR Agent allows a local authenticated Windows user to create files in the software's internal program directory that prevents the Cortex XDR Agent from starting. The exceptional condition is persistent and prevents Cortex XDR Agent from starting when the software or machine is restarted. This issue impacts: Cortex XDR Agent 5.0 versions earlier than 5.0.10; Cortex XDR Agent 6.1 versions earlier than 6.1.7; Cortex XDR Agent 7.0 versions earlier than 7.0.3; Cortex XDR Agent 7.1 versions earlier than 7.1.2.

Timeline

  1. ID reserved

    By palo_alto

  2. · 12 months later

    Published

  3. · 4 years later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2020-2020, by who scored it
Scored byCVSSScoreVector
palo_altoCNA (assigner)3.1Medium5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVDNVD · Modified3.1Medium5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
0.31% · top 76% of all CVEs (10 Nov 2026)
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.

Affected products

What to do

Solution: This issue is fixed in Cortex XDR Agent 5.0.10, Cortex XDR Agent 6.1.7, Cortex XDR Agent 7.0.3, Cortex XDR Agent 7.1.2, and all later Cortex XDR Agent versions.

References

1

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

CVE-2020-2020 badge
[![CVE-2020-2020](https://cveledger.app/badge/CVE-2020-2020.svg)](https://cveledger.app/cve/CVE-2020-2020)

Record last updated .