Improper authentication in Juniper Junos OS
Priority LOW 31CWE-287Published · Updated
Key facts
- Attack vector
- Physical
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · CNA. Fix status from CNA. Impact type from CWE-287.
Summary
An authentication bypass vulnerability in the initial boot sequence of Juniper Networks Junos OS on vSRX Series may allow an attacker to gain full control of the system without authentication when the system is initially booted up. Affected releases are Juniper Networks Junos OS: 15.1X49 versions prior to 15.1X49-D30 on vSRX.
Why it matters now
EPSS 0.0049 42nd percentileScored 2026-11-07
Fix Fixed Junos OS (Juniper Networks): 15.1X49-D30
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 | 15.1X49 to before 15.1X49-D30 | 15.1X49-D30 | Patch available | CNA |
- Junos OS VendorJuniper Affected 15.1X49 to before 15.1X49-D30 Fixed in 15.1X49-D30 Patch available CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:juniper:junos:15.1x49:*:*:*:*:*:*:* | 15.1x49 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:15.1x49:d10:*:*:*:*:*:* | 15.1x49 d10 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:15.1x49:d20:*:*:*:*:*:* | 15.1x49 d20 | Vulnerable | Juniper |
| cpe:2.3:h:juniper:vsrx:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
- cpe:2.3:o:juniper:junos:15.1x49:*:*:*:*:*:*:* Versions 15.1x49 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:15.1x49:d10:*:*:*:*:*:* Versions 15.1x49 d10 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:15.1x49:d20:*:*:*:*:*:* Versions 15.1x49 d20 Vulnerable ·Juniper
- cpe:2.3:h:juniper:vsrx:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
Remediation
- Fix · CNA Junos OS (Juniper Networks) Fixed in 15.1X49-D30
Timeline
- 2026-10-02 Threatist record created from CVE-2018-0053
- 2026-10-03 Alias added: GHSA-3vrq-6257-h5x3
References
Advisory 1
More Juniper Junos vulnerabilities
- TI-2023-18638 Junos OS: EX and SRX Series: A PHP vulnerability in J-Web allows an unauthenticated to… KEVCVSS 3.1CRITICAL 9.8
- TI-2020-01585 Out of Cycle Security Advisory: Junos OS: Security vulnerability in J-Web and web based (HTTP/HTTPS) services KEVCVSS 3.1CRITICAL 9.8
- TI-2015-04610 Assertion failure in ISC BIND named via TKEY queries KEVCVSS 3.1HIGH 7.5
- TI-2025-15550 Junos OS: An local attacker with shell access can execute arbitrary code KEVCVSS 4.0MEDIUM 6.7
- TI-2023-18644 Junos OS: SRX Series: A vulnerability in J-Web allows an unauthenticated attacker to upload and download arbitrary files KEVCVSS 3.1MEDIUM 5.3
- TI-2023-18640 Junos OS: EX Series: A vulnerability in J-Web allows an unauthenticated attacker to upload arbitrary files KEVCVSS 3.1MEDIUM 5.3
Sources
- CVE-2018-0053 · CVE Program
- CVE-2018-0053 · NVD
- FIRST EPSS
- GHSA-3vrq-6257-h5x3 · 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