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CVE record · CVE-2021-3055

PAN-OS: XML External Entity (XXE) Reference Vulnerability in the PAN-OS Web Interface

CVSS 6.5 MediumEPSS 0.011 · 65th percentile

Published by the CVE Program (CNA: palo_alto) at 8 Sept 2021, 17:10 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
Palo Alto Networks PAN-OS
  • unaffected 10.1.*
  • affected 9.0 to before 9.0.14 custom
  • affected 9.1 to before 9.1.10 custom
  • affected 10.0 to before 10.0.6 custom
  • affected 8.1 to before 8.1.20 custom
Identifiers
CVE-2021-3055
CNA
palo_alto
Weakness (CWE)
CWE-611
Tags
Published
8 Sept 2021
Updated
17 Sept 2024

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
6.5 Medium 3.1 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H CNA (palo_alto)
  • CISA KEV Not listed.
  • EPSS 0.011, the 65th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 8 Sept 2021. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.