01 Record
CVE-2022-0023
PAN-OS: Denial-of-Service (DoS) Vulnerability in DNS Proxy
MediumPUBLISHEDCNA: palo_alto
CNA base score5.9 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
02 Description
PAN-OS: Denial-of-Service (DoS) Vulnerability in DNS Proxy
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.73% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 54.0% of scored records. A rank, not a probability.
- NVD base score
- 5.9 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2022-04-13 18:35Z4 YR AGO
- Last updated
- 2024-09-16 19:05Z2 YR AGO
- Reserved
- 2021-12-28
- Assigning CNA
- palo_alto
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.9)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-755Improper Handling of Exceptional ConditionsClass
- Data version
- 5.1
- Document digest
- efbc9fe41604121596b19bd97bf82fa9ba2d2c73cf6c955887ddb576de69bb39
05 Affected products
VendorProductVersionsPlatforms
Palo Alto NetworksPAN-OS8.1 to < 8.1.22, 9.1 to < 9.1.13, 10.1 to < 10.1.5, 10.0 to < 10.0.10, 9.0 to < 9.0.16—
06 References
- security.paloaltonetworks.comhttps://security.paloaltonetworks.com/CVE-2022-0023
07 Remediation
This issue is fixed in PAN-OS 8.1.22, PAN-OS 9.0.16, PAN-OS 9.1.13, PAN-OS 10.0.10, PAN-OS 10.1.5, and all later PAN-OS versions.