What is GHSA-248v-73qf-wh7x?

GHSA-248v-73qf-wh7x is a security advisory published by GitHub Security Advisories with High severity. A Stack-based buffer overflow in the SonicOS SessionID HTTP response header allows a remote...

Which CVE IDs does GHSA-248v-73qf-wh7x cover?

GHSA-248v-73qf-wh7x covers the following CVE IDs: CVE-2021-20048. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-248v-73qf-wh7x?

GHSA-248v-73qf-wh7x has a CVSS v3 base score of 8.8, published by GitHub Security Advisories.

GHSA-248v-73qf-wh7xHighCVSS 8.8

A Stack-based buffer overflow in the SonicOS SessionID HTTP response header allows a remote...

Vendor

GitHub Security Advisories

Published

January 11, 2022

Last Modified

November 9, 2026

🔗 CVE IDs covered (1)

CVE-2021-20048 →

📋 Description

A Stack-based buffer overflow in the SonicOS SessionID HTTP response header allows a remote authenticated attacker to cause Denial of Service (DoS) and potentially results in code execution in the firewall. This vulnerability affected SonicOS Gen 5, Gen 6 and Gen 7 firmware versions.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2021-20048
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0028
https://github.com/advisories/GHSA-248v-73qf-wh7x