Information disclosure in Juniper Junos OS Evolved
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure, Security bypass
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-200 and CWE-284.
Summary
An Improper Access Control vulnerability in Juniper Networks Junos OS Evolved allows a network-based unauthenticated attacker who is able to connect to a specific open IPv4 port, which in affected releases should otherwise be unreachable, to cause the CPU to consume all resources as more traffic is sent to the port to create a Denial of Service (DoS) condition. Continued receipt and processing of these packets will create a sustained Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS Evolved 20.4 versions prior to 20.4R3-S2-EVO; 21.1 versions prior to 21.1R3-S1-EVO; 21.2 versions prior to 21.2R3-EVO; 21.3 versions prior to 21.3R2-EVO; 21.4 versions prior to 21.4R2-EVO. This issue does not affect Junos OS.
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 |
|---|---|---|---|---|---|
| Juniper | Junos OS Evolved | 20.4 to before 20.4R3-S2-EVO; 21.1 to before 21.1R3-S1-EVO; 21.2 to before 21.2R3-EVO; 21.3 to before 21.3R2-EVO; 21.4 to before 21.4R2-EVO | 20.4R3-S2-EVO, 21.1R3-S1-EVO, 21.2R3-EVO, 21.3R2-EVO, 21.4R2-EVO | Patch available | CNA |
| Juniper | Junos OS | — | Any | Patch available | CNA |
- Junos OS Evolved VendorJuniper Affected 20.4 to before 20.4R3-S2-EVO; 21.1 to before 21.1R3-S1-EVO; 21.2 to before 21.2R3-EVO; 21.3 to before 21.3R2-EVO; 21.4 to before 21.4R2-EVO Fixed in 20.4R3-S2-EVO, 21.1R3-S1-EVO, 21.2R3-EVO, 21.3R2-EVO, 21.4R2-EVO Patch available CNA
- Junos OS VendorJuniper Affected — Fixed in Any Patch available CNA
CPE configurations NVD · 23
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:juniper:junos_os_evolved:20.4:r1:*:*:*:*:*:* | 20.4 r1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos_os_evolved:20.4:r1-s1:*:*:*:*:*:* | 20.4 r1-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos_os_evolved:20.4:r1-s2:*:*:*:*:*:* | 20.4 r1-s2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos_os_evolved:20.4:r2:*:*:*:*:*:* | 20.4 r2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos_os_evolved:20.4:r2-s1:*:*:*:*:*:* | 20.4 r2-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos_os_evolved:20.4:r2-s2:*:*:*:*:*:* | 20.4 r2-s2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos_os_evolved:20.4:r2-s3:*:*:*:*:*:* | 20.4 r2-s3 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos_os_evolved:20.4:r3:*:*:*:*:*:* | 20.4 r3 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos_os_evolved:20.4:r3-s1:*:*:*:*:*:* | 20.4 r3-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos_os_evolved:21.1:r1:*:*:*:*:*:* | 21.1 r1 | Vulnerable | Juniper |
- cpe:2.3:o:juniper:junos_os_evolved:20.4:r1:*:*:*:*:*:* Versions 20.4 r1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos_os_evolved:20.4:r1-s1:*:*:*:*:*:* Versions 20.4 r1-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos_os_evolved:20.4:r1-s2:*:*:*:*:*:* Versions 20.4 r1-s2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos_os_evolved:20.4:r2:*:*:*:*:*:* Versions 20.4 r2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos_os_evolved:20.4:r2-s1:*:*:*:*:*:* Versions 20.4 r2-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos_os_evolved:20.4:r2-s2:*:*:*:*:*:* Versions 20.4 r2-s2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos_os_evolved:20.4:r2-s3:*:*:*:*:*:* Versions 20.4 r2-s3 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos_os_evolved:20.4:r3:*:*:*:*:*:* Versions 20.4 r3 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos_os_evolved:20.4:r3-s1:*:*:*:*:*:* Versions 20.4 r3-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos_os_evolved:21.1:r1:*:*:*:*:*:* Versions 21.1 r1 Vulnerable ·Juniper
Show 13 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:juniper:junos_os_evolved:21.1:r1-s1:*:*:*:*:*:* | 21.1 r1-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos_os_evolved:21.1:r2:*:*:*:*:*:* | 21.1 r2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos_os_evolved:21.1:r3:*:*:*:*:*:* | 21.1 r3 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos_os_evolved:21.2:r1:*:*:*:*:*:* | 21.2 r1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos_os_evolved:21.2:r1-s1:*:*:*:*:*:* | 21.2 r1-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos_os_evolved:21.2:r1-s2:*:*:*:*:*:* | 21.2 r1-s2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos_os_evolved:21.2:r2:*:*:*:*:*:* | 21.2 r2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos_os_evolved:21.2:r2-s1:*:*:*:*:*:* | 21.2 r2-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos_os_evolved:21.2:r2-s2:*:*:*:*:*:* | 21.2 r2-s2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos_os_evolved:21.3:r1:*:*:*:*:*:* | 21.3 r1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos_os_evolved:21.3:r1-s1:*:*:*:*:*:* | 21.3 r1-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos_os_evolved:21.4:r1:*:*:*:*:*:* | 21.4 r1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos_os_evolved:21.4:r1-s1:*:*:*:*:*:* | 21.4 r1-s1 | Vulnerable | Juniper |
- cpe:2.3:o:juniper:junos_os_evolved:21.1:r1-s1:*:*:*:*:*:* Versions 21.1 r1-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos_os_evolved:21.1:r2:*:*:*:*:*:* Versions 21.1 r2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos_os_evolved:21.1:r3:*:*:*:*:*:* Versions 21.1 r3 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos_os_evolved:21.2:r1:*:*:*:*:*:* Versions 21.2 r1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos_os_evolved:21.2:r1-s1:*:*:*:*:*:* Versions 21.2 r1-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos_os_evolved:21.2:r1-s2:*:*:*:*:*:* Versions 21.2 r1-s2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos_os_evolved:21.2:r2:*:*:*:*:*:* Versions 21.2 r2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos_os_evolved:21.2:r2-s1:*:*:*:*:*:* Versions 21.2 r2-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos_os_evolved:21.2:r2-s2:*:*:*:*:*:* Versions 21.2 r2-s2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos_os_evolved:21.3:r1:*:*:*:*:*:* Versions 21.3 r1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos_os_evolved:21.3:r1-s1:*:*:*:*:*:* Versions 21.3 r1-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos_os_evolved:21.4:r1:*:*:*:*:*:* Versions 21.4 r1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos_os_evolved:21.4:r1-s1:*:*:*:*:*:* Versions 21.4 r1-s1 Vulnerable ·Juniper
Remediation
- Fix · CNA Junos OS Evolved (Juniper Networks) Fixed in 20.4R3-S2-EVO, 21.1R3-S1-EVO, 21.2R3-EVO, 21.3R2-EVO, 21.4R2-EVO
- Fix · CNA Junos OS (Juniper Networks) Fixed in Any
Timeline
- 2026-10-02 Threatist record created from CVE-2022-22183
- 2026-10-03 Alias added: GHSA-p879-gfvw-mvjh
References
Advisory 1
More Juniper Junos Os Evolved vulnerabilities
- TI-2026-17602 Junos OS Evolved: PTX Series: A vulnerability allows a unauthenticated, network-based attacker to execute code as root CVSS 4.0CRITICAL 9.3
- TI-2026-17601 Junos OS and Junos OS Evolved: Configuration of a specific SSH option results in mgd crash CVSS 4.0MEDIUM 6.7
- TI-2023-04136 Improper input validation in Juniper Junos OS CVSS 3.1HIGH 7.5
- TI-2026-74215 Stack-based buffer overflow in Junos OS rpd triggered by BGP peers CVSS 4.0CRITICAL 9.3
- TI-2026-74211 Authentication bypass in Juniper J-Web allows pre-auth CGI execution CVSS 4.0CRITICAL 9.3
- TI-2021-00146 Junos OS and Junos OS Evolved: Upon receipt of a specific BGP FlowSpec message network traffic may be disrupted. CVSS 3.1CRITICAL 10.0
Sources
- CVE-2022-22183 · CVE Program
- CVE-2022-22183 · NVD
- FIRST EPSS
- GHSA-p879-gfvw-mvjh · GitHub Advisory Database · CC BY 4.0
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