How severe is CVE-2021-3062?

CVE-2021-3062 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2021-3062 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-3062?

CVE-2021-3062 affects Paloaltonetworks Pan-os. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-3062?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-3062 published?

CVE-2021-3062 was published on 2021-11-10 and last updated on 2026-06-17.

CVE-2021-3062

CVE-2021-3062 is a high-severity vulnerability in Paloaltonetworks Pan-os with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-284.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v2: 6.0
EPSS exploit prediction: 1% (49th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-284
Affected product: Paloaltonetworks Pan-os
Published: 2021-11-10
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2021-3062?: 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.
How severe is CVE-2021-3062?: CVE-2021-3062 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2021-3062 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-3062?: CVE-2021-3062 affects Paloaltonetworks Pan-os. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-3062?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-3062 published?: CVE-2021-3062 was published on 2021-11-10 and last updated on 2026-06-17.

References

https://security.paloaltonetworks.com/CVE-2021-3062

Affected products (1)

cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*

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