CVE-2021-3045 — PAN-OS: OS Command Argument Injection in Web Interface

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MEDIUM

PAN-OS: OS Command Argument Injection in Web Interface

Published Aug 11, 2021

4.9

MEDIUM

CVSS 3.1

EPSS 0.79%

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.

Affected products

Vendor Palo Alto Networks Product Pan-OS Default
n/a
- Version
  8.1
  Status
  affected
  Constraints
  <8.1.19
- Version
  9.0
  Status
  affected
  Constraints
  <9.0.14
- Version
  9.1
  Status
  affected
  Constraints
  <9.1.10
- Version
  10.0.*
  Status
  unaffected
  Constraints
  -
- Version
  10.1.*
  Status
  unaffected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Palo Alto Networks

Pan-OS

n/a

Version	Status	Constraints
8.1	affected	<8.1.19
9.0	affected	<9.0.14
9.1	affected	<9.1.10
10.0.*	unaffected	-
10.1.*	unaffected	-

Remediation

Vendor solution

This issue is fixed in PAN-OS 8.1.19, PAN-OS 9.0.14, PAN-OS 9.1.10, and all later PAN-OS versions.

Metrics

0.79% 0.00790

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.

EPSS probability 0.00790

Score over time

2021–2026

EPSS v1
EPSS v5
EPSS v2
EPSS v3
EPSS v4

Percentile over time

EPSS v1
EPSS v5
EPSS v2
EPSS v3
EPSS v4

Table of values (18 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 2, 2026	0.79% (0.00790)	54.69th	v5 (v2026.06.15)
Jun 15, 2026	0.79% (0.00790)	51.29th	v5 (v2026.06.15)
Jul 30, 2025	0.75% (0.00750)	72.18th	v4 (v2025.03.14)
Mar 29, 2025	1.91% (0.01907)	72.28th	v4 (v2025.03.14)
Mar 17, 2025	0.87% (0.00866)	73.53th	v4 (v2025.03.14)
Dec 12, 2024	0.07% (0.00065)	30.40th	v3 (v2023.03.01)
Jun 20, 2024	0.07% (0.00065)	28.44th	v3 (v2023.03.01)
Mar 7, 2023	0.07% (0.00065)	26.41th	v3 (v2023.03.01)
Mar 6, 2023	0.89% (0.00885)	27.89th	v2 (v2022.01.01)
Apr 1, 2022	0.89% (0.00885)	24.24th	v2 (v2022.01.01)
Feb 4, 2022	10.85% (0.10855)	88.34th	v2 (v2022.01.01)
Feb 3, 2022	1.95% (0.01953)	49.98th	v1
Jan 6, 2022	1.95% (0.01953)	49.47th	v1
Oct 11, 2021	0.44% (0.00442)	27.95th	v1
Oct 10, 2021	1.95% (0.01953)	76.34th	v1
Aug 20, 2021	1.95% (0.01953)	0.00th	v1
Aug 19, 2021	0.44% (0.00442)	0.00th	v5 (v2026.06.15)
Aug 12, 2021	0.44% (0.00442)	0.00th	v1

Weaknesses (1)

CWE-88

References (1)

https://security.paloaltonetworks.com/CVE-2021-3045
x_refsource_MISCVendor Advisory

Link	Providers	Tags
https://security.paloaltonetworks.com/CVE-2021-3045		x_refsource_MISCVendor Advisory

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner palo_alto

Published Aug 11, 2021

Updated Sep 16, 2024

Reserved Jan 6, 2021

Link CVE-2021-3045

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2021-3045

Red Hat

Severity n/a

Public date n/a

Links CVE-2021-3045