8.8

CVE-2021-3062: palo alto networks pan-os Improper Access Control

CVSS: 8.8v3.1HighModified
Published 10-11-2021Last modified 17-09-2024
Open JSON

Vulnerability summary

CVE-2021-3062 is a high (CVSS 8.8) Improper Access Control vulnerability in palo alto networks pan-os. EPSS estimates a 0.72% chance of exploitation in the next 30 days, higher than 53.1% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (NVD)
EPSS score
0.72%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 10-11-2021
    PublishedVulnerability first disclosed.
  2. 17-09-2024
    Last modifiedVulnerability information updated.

Description

An improper access control vulnerability in PAN-OS software enables an attacker with authenticated access to GlobalProtect portals and gateways to connect to the EC2 instance metadata endpoint for VM-Series firewalls hosted on Amazon AWS. Exploitation of this vulnerability enables an attacker to perform any operations allowed by the EC2 role in AWS. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.20 VM-Series firewalls; PAN-OS 9.1 versions earlier than PAN-OS 9.1.11 VM-Series firewalls; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14 VM-Series firewalls; PAN-OS 10.0 versions earlier than PAN-OS 10.0.8 VM-Series firewalls. Prisma Access customers are not impacted by this issue.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.72%

Chance of exploitation in the next 30 days

Percentile

53%

Versus all other CVEs

30-day change

0.00 pp

From 0.72% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.72%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Palo alto networks1 product
  • pan-os≥ 9.1, < 9.1.11 | ≥ 8.1, < 8.1.20 | ≥ 9.0, < 9.0.14 | ≥ 10.0, < 10.0.8
Paloaltonetworks1 product
  • pan-os≥ 8.1.0, < 8.1.20 | ≥ 9.0.0, < 9.0.14 | ≥ 9.1.0, < 9.1.11 | ≥ 10.0.0, < 10.0.8

2 vendors · 2 products

References

1 links