CVE-2021-27434
Published May 20, 2021
Last updated a year ago
Overview
- Description
- Products with Unified Automation .NET based OPC UA Client/Server SDK Bundle: Versions V3.0.7 and prior (.NET 4.5, 4.0, and 3.5 Framework versions only) are vulnerable to an uncontrolled recursion, which may allow an attacker to trigger a stack overflow.
- Source
- ics-cert@hq.dhs.gov
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 7.5
- Impact score
- 3.6
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Severity
- HIGH
CVSS 2.0
- Type
- Primary
- Base score
- 5
- Impact score
- 2.9
- Exploitability score
- 10
- Vector string
- AV:N/AC:L/Au:N/C:P/I:N/A:N
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:unified-automation:.net_based_opc_ua_client\\/server_sdk:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "72FFADD0-F648-492C-9A45-1456EEDAAD06",
"versionEndIncluding": "3.0.7"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "E039CE1F-B988-4741-AE2E-5B36E2AF9688"
},
{
"criteria": "cpe:2.3:a:microsoft:.net_framework:4.0:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "792B417F-96A0-4E9D-9E79-5D7F982E2225"
},
{
"criteria": "cpe:2.3:a:microsoft:.net_framework:4.5:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "61FAD9EE-FA7F-4B39-8A9B-AFFAEC8BF214"
}
],
"operator": "OR"
}
],
"operator": "AND"
}
]