PAN-OS on PA-7000 Series: Varrcvr daemon network-based denial of service or privilege escalation
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-134 and the CVSS impact.
Summary
A format string vulnerability in the Varrcvr daemon of PAN-OS on PA-7000 Series devices with a Log Forwarding Card (LFC) allows remote attackers to crash the daemon creating a denial of service condition or potentially execute code with root privileges. This issue affects Palo Alto Networks PAN-OS 9.0 versions before 9.0.7; PAN-OS 9.1 versions before 9.1.2 on PA-7000 Series devices with an LFC installed and configured. This issue requires WildFire services to be configured and enabled. This issue does not affect PAN-OS 8.1 and earlier releases. This issue does not affect any other PA Series firewalls.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Palo Alto Networks | PAN-OS | 9.0 to before 9.0.7; 9.1 to before 9.1.2 | 9.0.7, 9.1.2 | Patch available | CNA |
| Palo Alto Networks | PAN-OS | — | — | No fix listed | CNA |
- PAN-OS VendorPalo Alto Networks Affected 9.0 to before 9.0.7; 9.1 to before 9.1.2 Fixed in 9.0.7, 9.1.2 Patch available CNA
- PAN-OS VendorPalo Alto Networks Affected — Fixed in — No fix listed CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:* | 9.0.0 to before 9.0.7; 9.1.0 to before 9.1.2 | Vulnerable | CyberArk Software, a Palo Alto Networks Company |
| cpe:2.3:h:paloaltonetworks:pa-7050:-:*:*:*:*:*:*:* | not specified by NVD | Running on | CyberArk Software, a Palo Alto Networks Company |
| cpe:2.3:h:paloaltonetworks:pa-7080:-:*:*:*:*:*:*:* | not specified by NVD | Running on | CyberArk Software, a Palo Alto Networks Company |
- cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:* Versions 9.0.0 to before 9.0.7; 9.1.0 to before 9.1.2 Vulnerable ·CyberArk Software, a Palo Alto Networks Company
- cpe:2.3:h:paloaltonetworks:pa-7050:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·CyberArk Software, a Palo Alto Networks Company
- cpe:2.3:h:paloaltonetworks:pa-7080:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·CyberArk Software, a Palo Alto Networks Company
Remediation
- Fix · CNA PAN-OS (Palo Alto Networks) Fixed in 9.0.7, 9.1.2
Timeline
- 2026-10-02 Threatist record created from CVE-2020-1992
- 2026-10-03 Alias added: GHSA-rpm3-9x65-q856
References
More Palo Alto Networks vulnerabilities
- TI-2024-08782 Expedition: Unauthenticated OS Command Injection Vulnerability Leads to Firewall Credential Disclosure KEVCVSS 4.0CRITICAL 9.9
- TI-2024-03172 PAN-OS: Arbitrary File Creation Leads to OS Command Injection Vulnerability in GlobalProtect KEVCVSS 3.1CRITICAL 10.0
- TI-2020-01936 PAN-OS: Authentication Bypass in SAML Authentication KEVCVSS 3.1CRITICAL 10.0
- TI-2017-11675 Palo Alto Networks PAN-OS before 6.1.19, 7.0.x before 7.0.19, 7.1.x before 7.1.14, and… KEVCVSS 3.1CRITICAL 9.8
- TI-2026-00239 PAN-OS: Unauthenticated user initiated Buffer Overflow Vulnerability in User-ID™ Authentication Portal KEVCVSS 4.0CRITICAL 9.3
- TI-2024-08784 Expedition: SQL Injection Leads to Firewall Admin Credential Disclosure KEVCVSS 4.0CRITICAL 9.2
Sources
- CVE-2020-1992 · CVE Program
- CVE-2020-1992 · NVD
- FIRST EPSS
- GHSA-rpm3-9x65-q856 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences