CVE-2023-6764
8.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
8.2 High
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
8.8%
A format string vulnerability in a function of the IPSec VPN feature in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1, USG FLEX series firmware versions from 4.50 through 5.37 Patch 1, USG FLEX 50(W) series firmware versions from 4.16 through 5.37 Patch 1, and USG20(W)-VPN series firmware versions from 4.16 through 5.37 Patch 1 could allow an attacker to achieve unauthorized remote code execution by sending a sequence of specially crafted payloads containing an invalid pointer; however, such an attack would require detailed knowledge of an affected device’s memory layout and configuration.
CNA Affected
[
{
"defaultStatus": "unaffected",
"product": "ATP series firmware",
"vendor": "Zyxel",
"versions": [
{
"status": "affected",
"version": "version 4.32 through 5.37 Patch 1"
}
]
},
{
"defaultStatus": "unaffected",
"product": "USG FLEX series firmware",
"vendor": "Zyxel",
"versions": [
{
"status": "affected",
"version": "version 4.50 through 5.37 Patch 1"
}
]
},
{
"defaultStatus": "unaffected",
"product": "USG FLEX 50(W) series firmware",
"vendor": "Zyxel",
"versions": [
{
"status": "affected",
"version": "version 4.16 through 5.37 Patch 1"
}
]
},
{
"defaultStatus": "unaffected",
"product": "USG20(W)-VPN series firmware",
"vendor": "Zyxel",
"versions": [
{
"status": "affected",
"version": "version 4.16 through 5.37 Patch 1"
}
]
}
]Related
8.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
8.2 High
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
8.8%