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CVE-2021-3057

HIGHCVSS 8.1/10EPSS 1.38%

Last modified

CVE-2021-3057 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. A stack-based buffer overflow vulnerability exists in the Palo Alto Networks GlobalProtect app that enables a man-in-the-middle attacker to disrupt system processes and potentially execute arbitrary code with SYSTEM privileges. This issue impacts: GlobalProtect app 5.1 versions earlier than GlobalProtect app 5.1.9 on Windows; GlobalProtect app 5.2 versions earlier than GlobalProtect app 5.2.8 on Windows; GlobalProtect app 5.2 versions earlier than GlobalProtect app 5.2.8 on the Universal Windows Platform; GlobalProtect app 5.3 versions earlier than GlobalProtect app 5.3.1 on Linux.. EPSS estimates a 1.38% chance of exploitation in the next 30 days.

Description

A stack-based buffer overflow vulnerability exists in the Palo Alto Networks GlobalProtect app that enables a man-in-the-middle attacker to disrupt system processes and potentially execute arbitrary code with SYSTEM privileges. This issue impacts: GlobalProtect app 5.1 versions earlier than GlobalProtect app 5.1.9 on Windows; GlobalProtect app 5.2 versions earlier than GlobalProtect app 5.2.8 on Windows; GlobalProtect app 5.2 versions earlier than GlobalProtect app 5.2.8 on the Universal Windows Platform; GlobalProtect app 5.3 versions earlier than GlobalProtect app 5.3.1 on Linux.

Metrics

CVSS 3.1
8.1/10

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
1.38%

68.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
PaloaltonetworksGlobalprotect>= 5.0, <= 5.0.8
PaloaltonetworksGlobalprotect>= 5.0, <= 5.0.9
PaloaltonetworksGlobalprotect>= 5.0, <= 5.0.10
PaloaltonetworksGlobalprotect>= 5.1, <= 5.1.1
PaloaltonetworksGlobalprotect>= 5.1, < 5.1.9
PaloaltonetworksGlobalprotect>= 5.1.0, <= 5.1.4
PaloaltonetworksGlobalprotect>= 5.2, < 5.2.8
PaloaltonetworksGlobalprotect>= 5.3, < 5.3.1
PaloaltonetworksGlobalprotect5.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-3057?
A stack-based buffer overflow vulnerability exists in the Palo Alto Networks GlobalProtect app that enables a man-in-the-middle attacker to disrupt system processes and potentially execute arbitrary code with SYSTEM privileges. This issue impacts: GlobalProtect app 5.1 versions earlier than GlobalProtect app 5.1.9 on Windows; GlobalProtect app 5.2 versions earlier than GlobalProtect app 5.2.8 on Windows; GlobalProtect app 5.2 versions earlier than GlobalProtect app 5.2.8 on the Universal Windows Platform; GlobalProtect app 5.3 versions earlier than GlobalProtect app 5.3.1 on Linux.
How severe is CVE-2021-3057?
CVE-2021-3057 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 1.38% probability of exploitation in the next 30 days.
How do I fix CVE-2021-3057?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-3057?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST