CVE-2021-3045
📛 CVE Title
PAN-OS: OS Command Argument Injection in Web Interface
Description
An OS command argument injection vulnerability in the Palo Alto Networks PAN-OS web interface enables an authenticated administrator to read any arbitrary file from the file system. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.19; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14; PAN-OS 9.1 versions earlier than PAN-OS 9.1.10. PAN-OS 10.0 and later versions are not impacted.
Overview
- State
- —
- Assigner (CNA)
- —
- CVSS severity
- MEDIUM
- CVSS score
- 5.0 / 10
- CVSS vector
AV:N/AC:L/Au:S/C:P/I:N/A:N- Effective score
- 5.0 / 10 MEDIUM source: CNA overview
- CWE(s)
- —
- Reserved
- —
- Published
- 2021-08-11 00:00 UTC
- Last updated
- —
- Source
- https://www.rapid7.com/db/vulnerabilities/panos-cve-2021-3045/
NVD triage scoring NVD CVE 2.0
Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.
- NVD published
- 2021-08-11 17:15:07 UTC
- NVD last modified
- 2026-06-17 04:04:37 UTC
- NVD CVSS v3.1
- 4.9 / 10 MEDIUM source: psirt@paloaltonetworks.com
- NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N- Exploitability subscore
- 1.2 / 10
- Impact subscore
- 3.6 / 10
- EPSS score
- 0.0079 (probability of exploitation in next 30 days)
- EPSS percentile
- 51.83% vs all CVEs — higher = more likely to be exploited, as of 2026-07-06
NVD-assigned CWE(s):
CWE-88
(differs from the CNA list above)
NVD / KEV / EPSS data refreshed 2026-07-07 01:36 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.
European Union Vulnerability Database ENISA EUVD
ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.
- EUVD ID
-
EUVD-2021-26397 - Assigner
- palo_alto
- Published
- Aug 11, 2021, 5:10:14 PM
- Updated
- Sep 16, 2024, 11:35:37 PM
- EUVD base score (CVSS 3.1)
-
4.9 / 10
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N - EUVD-reported EPSS
- 0.7900
- Vendors
- Palo Alto Networks
- Products
-
PAN-OS (9.1 <9.1.10)PAN-OS (8.1 <8.1.19)PAN-OS (9.0 <9.0.14)
- Aliases
-
GHSA-xch5-226j-jph3
ENISA description: An OS command argument injection vulnerability in the Palo Alto Networks PAN-OS web interface enables an authenticated administrator to read any arbitrary file from the file system. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.19; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14; PAN-OS 9.1 versions earlier than PAN-OS 9.1.10. PAN-OS 10.0 and later versions are not impacted.
EUVD references (1)
Affected products — CPE 2.3 (1) NVD
NVD's normalized CPE 2.3 matchers, used by vendor tools (vulnerability scanners, asset managers) for automated detection. Compare with the CNA's free-text "Affected products" section above.
cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*
Vendor references (0)
References embedded in the original CVE record by the assigning CNA.
None in the CVE record.
Web references (3)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
- https://attackerkb.com/topics/CVE-2021-3045 rapid7:attackerkb.com
- https://security.paloaltonetworks.com/CVE-2021-3045 rapid7:security.paloaltonetworks.com
- https://www.cve.org/CVERecord?id=CVE-2021-3045 rapid7:www.cve.org
NVD-tagged references (2)
Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.
- https://security.paloaltonetworks.com/CVE-2021-3045 psirt@paloaltonetworks.com Vendor Advisory
- https://security.paloaltonetworks.com/CVE-2021-3045 af854a3a-2127-422b-91ae-364da2661108 Vendor Advisory
Remediations (10)
-
web:attack.mitre.org
This mitigation can be implemented through the following measures: Regular Operating System Updates Implementation: Apply the latest Windows security updates monthly using WSUS (Windows Server Update Services) or a similar patch management solution. Configure systems to check for updates automatically and schedule reboots during maintenance ...
2026-06-04 02:02 UTC -
web:csrc.nist.gov
Enterprise patch management is the process of identifying, prioritizing, acquiring, installing, and verifying the installation of patches, updates, and upgrades throughout an organization. Patching is more important than ever because of the increasing reliance on technology, but there is often a divide between business/mission owners and security/technology management about the value of ...
2026-06-04 02:02 UTC -
web:msrc.microsoft.com
The Microsoft Security Response Center (MSRC) investigates all reports of security vulnerabilities affecting Microsoft products and services, and provides the information here as part of the ongoing effort to help you manage security risks and help keep your systems protected.
2026-06-04 02:02 UTC -
web:nvd.nist.gov
The NVD is the U.S. government repository of standards based vulnerability management data represented using the Security Content Automation Protocol (SCAP). This data enables automation of vulnerability management, security measurement, and compliance. The NVD includes databases of security checklist references, security-related software flaws, product names, and impact metrics. For ...
2026-06-04 02:02 UTC -
web:source.android.com
Android partners are encouraged to fix all issues in this bulletin and use the latest security patch level. Devices that use the 2025-11-01 security patch level must include all issues associated with that security patch level, as well as fixes for all issues reported in previous security bulletins.
2026-06-04 02:02 UTC -
web:www.forbes.com
Mitigation Measures To Take If Patching Isn't Possible Assuming a patch can't be promptly applied, what can be done to mitigate risk? There are several important measures to keep in mind:
2026-06-04 02:02 UTC -
web:www.microsoft.com
These Knowledge Base articles accompany all security updates and advisories, and include caveats or known issues with security updates. Additionally, support engineers document common concerns from customers in these KB articles. These Knowledge Base articles are published the Security Update Guide with each release on Patch Tuesday.
2026-06-04 02:02 UTC -
web:www.oracle.com
Critical Security Patch Updates Critical Security Patch Updates provide security patches for supported Oracle on-premises products. A Critical Security Patch Update provides targeted, high-priority security fixes in a smaller, more focused format, making them easier to apply with minimal disruption.
2026-06-04 02:02 UTC -
web:www.oracle.com
This Critical Patch Update contains 481 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at April 2026 Critical Patch Update: Executive Summary and Analysis.
2026-06-04 02:02 UTC -
web:www.securityweek.com
Oracle on Tuesday announced the release of 481 new security patches as part of its April 2026 Critical Patch Update (CPU). Across the 28 product families that received security updates, more than 300 patches address vulnerabilities that are remotely exploitable without authentication. Roughly three dozen fixes resolve critical-severity security defects. There appear to be approximately 450 ...
2026-06-04 02:02 UTC
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