CVE-2020-35608

Name: CVE-2020-35608
Creator: NVD / NIST
Published: 2020-12-22T20:15:12.38+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 4.04%

Last modified Jun 17, 2026

CVE-2020-35608 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. A code execution vulnerability exists in the normal world’s signed code execution functionality of Microsoft Azure Sphere 20.07. A specially crafted AF_PACKET socket can cause a process to create an executable memory mapping with controllable content. EPSS estimates a 4.04% chance of exploitation in the next 30 days.

Description

A code execution vulnerability exists in the normal world’s signed code execution functionality of Microsoft Azure Sphere 20.07. A specially crafted AF_PACKET socket can cause a process to create an executable memory mapping with controllable content. An attacker can execute a shellcode that uses the PACKET_MMAP functionality to trigger this vulnerability.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

4.04%

89.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-74

Affected Software

Vendor	Product	Versions
Microsoft	Azure Sphere	20.07

References

https://talosintelligence.com/vulnerability_reports/TALOS-2020-1134Exploit, Third Party Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1134Exploit, Third Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2020-1134Exploit, Third Party Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1134Exploit, Third Party Advisory

Timeline

Published: Dec 22, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-35608?

How severe is CVE-2020-35608?

CVE-2020-35608 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 4.04% probability of exploitation in the next 30 days.

How do I fix CVE-2020-35608?

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-2020-35608?

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

Scan your code now

Source: NVD / NIST