CVE-2021-20048
6.5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:P/I:P/A:P
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.7 High
AI Score
Confidence
High
0.004 Low
EPSS
Percentile
72.2%
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.
Affected configurations
| CPE | Name | Operator | Version |
|---|---|---|---|
| sonicwall:sonicos | sonicwall sonicos | le | 7.0.1-r1456 |
CNA Affected
[
{
"product": "SonicOS",
"vendor": "SonicWall",
"versions": [
{
"status": "affected",
"version": "7.0.1-R146 and earlier"
},
{
"status": "affected",
"version": "7.0.1-5023-1349 and earlier"
},
{
"status": "affected",
"version": "7.0.1-5018-R1715 and earlier"
},
{
"status": "affected",
"version": "6.5.4.8-89n and earlier"
},
{
"status": "affected",
"version": "6.5.1.13-1n and earlier"
},
{
"status": "affected",
"version": "6.0.5.3-94o and earlier"
},
{
"status": "affected",
"version": "6.5.4.v_21s-1288 and earlier"
},
{
"status": "affected",
"version": "5.9.1.13 and earlier"
}
]
}
]Related
6.5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:P/I:P/A:P
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.7 High
AI Score
Confidence
High
0.004 Low
EPSS
Percentile
72.2%