CVE-2021-20048

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
8.8 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
sonicwallCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 75%
VendorProductVersion
sonicwallsonicos
𝑥
≤ 7.0.1-r1456
sonicwallsonicos
𝑥
≤ 7.0.1-5023-1349
sonicwallsonicos
𝑥
≤ 7.0.1-5018-r1715
sonicwallsonicos
𝑥
≤ 6.5.4.8
sonicwallsonicos
𝑥
≤ 6.5.1.13-1n
sonicwallsonicos
𝑥
≤ 6.0.5.3-94o
sonicwallsonicos
𝑥
≤ 5.9.1.13
𝑥
= Vulnerable software versions