CVE-2021-1236
- Source
- https://cve.org/CVERecord?id=CVE-2021-1236
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-1236.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-1236
- Downstream
- Related
- Published
- 2021-01-13T22:15:20.583Z
- Modified
- 2026-03-15T14:42:07.400324Z
- Severity
-
- 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
- Summary
- [none]
- Details
-
Multiple Cisco products are affected by a vulnerability in the Snort application detection engine that could allow an unauthenticated, remote attacker to bypass the configured policies on an affected system. The vulnerability is due to a flaw in the detection algorithm. An attacker could exploit this vulnerability by sending crafted packets that would flow through an affected system. A successful exploit could allow the attacker to bypass the configured policies and deliver a malicious payload to the protected network.
- References
Affected packages
Git /
Database specific
source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-1236.json"
unresolved_ranges
[
{
"events": [
{
"introduced": "0"
},
{
"fixed": "17.4.1"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"fixed": "6.5.0.5"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "2.9.14.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "2.9.14.14"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "2.9.15"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "2.9.16"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "2.9.17"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.9.14"
}
]
}
]