CVE-2020-1999
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2020
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
PAN-OS: Threat signatures are evaded by specifically crafted packets
A vulnerability exists in the Palo Alto Network PAN-OS signature-based threat detection engine that allows an attacker to communicate with devices in the network in a way that is not analyzed for threats by sending data through specifically crafted TCP packets. This technique evades signature-based threat detection. This issue impacts: PAN-OS 8.1 versions earlier than 8.1.17; PAN-OS 9.0 versions earlier than 9.0.11; PAN-OS 9.1 versions earlier than 9.1.5; All versions of PAN-OS 7.1 and PAN-OS 8.0.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
PAN-OS
- Vendor
- Palo Alto Networks
- Product
- PAN-OS
- Platforms
- Unknown
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 7.1.* | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.0.* | affected | Unavailable | Unavailable | Unavailable | None listed |
| 10.0.* | unaffected | Unavailable | Unavailable | Unavailable | None listed |
| 8.1 | affected | custom | 8.1.17 | Unavailable |
|
| 9.0 | affected | custom | 9.0.11 | Unavailable |
|
| 9.1 | affected | custom | 9.1.5 | Unavailable |
|