CVE-2021-3054 json
PAN-OS: Unsigned Code Execution During Plugin Installation Race Condition Vulnerability
published 2021-09-08 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-26406
- cvss
- 7.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 60%
- public exploits
- 0
- none known
Summary
A time-of-check to time-of-use (TOCTOU) race condition vulnerability in the Palo Alto Networks PAN-OS web interface enables an authenticated administrator with permission to upload plugins to execute arbitrary code with root user privileges. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.20; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14; PAN-OS 9.1 versions earlier than PAN-OS 9.1.11; PAN-OS 10.0 versions earlier than PAN-OS 10.0.7; PAN-OS 10.1 versions earlier than PAN-OS 10.1.2. This issue does not affect Prisma Access.
Patch / fix
- Palo Alto Networks PAN-OS 8.1.20, 9.0.14, 9.1.11, 10.0.7, 10.1.2
Exploit prediction
0.92% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.2 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 6.6 | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 8.5 | AV:N/AC:M/Au:S/C:C/I:C/A:C |
Affected products
- Palo Alto Networks PAN-OS
Classification
- Weakness
-
- CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition
- Technology feeds
References
-
security.paloaltonetworks.com
/CVE-2021-3054
vendor-advisory
Sources
- CVE List CVE-2021-3054
- NVD CVE-2021-3054
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