CVE-2020-2043 json
PAN-OS: Passwords may be logged in clear text when using after-change-detail custom syslog field for config logs
published 2020-09-09 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-22069
- cvss
- 3.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 54%
- public exploits
- 0
- none known
Summary
An information exposure through log file vulnerability where sensitive fields are recorded in the configuration log without masking on Palo Alto Networks PAN-OS software when the after-change-detail custom syslog field is enabled for configuration logs and the sensitive field appears multiple times in one log entry. The first instance of the sensitive field is masked but subsequent instances are left in clear text. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.16; PAN-OS 9.0 versions earlier than PAN-OS 9.0.10; PAN-OS 9.1 versions earlier than PAN-OS 9.1.4.
Patch / fix
- Palo Alto Networks PAN-OS 8.1.16, 9.0.10, 9.1.4
Exploit prediction
0.73% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 3.3 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| NVD | 3.1 | 3.3 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| NVD | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:P/I:N/A:N |
Affected products
- Palo Alto Networks PAN-OS
Classification
- Weakness
-
- CWE-532 Insertion of Sensitive Information into Log File
- Technology feeds
References
-
security.paloaltonetworks.com
/CVE-2020-2043
vendor-advisory
Sources
- CVE List CVE-2020-2043
- NVD CVE-2020-2043
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