Overview
- Description
- A format string vulnerability in Zyxel NAS326 firmware versions prior to V5.21(AAZF.12)C0 could allow an attacker to achieve unauthorized remote code execution via a crafted UDP packet.
- Source
- security@zyxel.com.tw
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 9.8
- Impact score
- 5.9
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Severity
- CRITICAL
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:zyxel:nas326_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "2859006C-00D3-4CF0-B9EF-4CEDD737CF98",
"versionEndExcluding": "5.21\\(aazf.12\\)c0"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:zyxel:nas326:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "E0A01B19-4A91-4FBC-8447-2E854346DAC5"
}
],
"operator": "OR"
}
],
"operator": "AND"
}
]