CVE-2021-20048
High
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.
SeverityHigh
CVSS8.8
Exploit probability—
Product
Sonicwall Sonicos
PublishedJan 10, 2022
First seenJan 10, 2022
Weakness typeCWE-121CWE-121
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| sonicwall sonicos | v ≤ 7.0.1-r1456, v ≤ 7.0.1-5023-1349, v ≤ 7.0.1-5018-r1715, v ≤ 6.5.4.8, v ≤ 6.5.1.13-1n, v ≤ 6.0.5.3-94o, v ≤ 5.9.1.13 | — |
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