Junos OS: High-End SRX Series: Multicast traffic might cause all FPCs to reset.
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-190 and the CVSS impact.
Summary
On High-End SRX Series devices, in specific configurations and when specific networking events or operator actions occur, an SPC receiving genuine multicast traffic may core. Subsequently, all FPCs in a chassis may reset causing a Denial of Service. This issue affects both IPv4 and IPv6. This issue affects: Juniper Networks Junos OS 12.3X48 version 12.3X48-D80 and later versions prior to 12.3X48-D95 on High-End SRX Series. This issue does not affect Branch SRX Series devices.
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 | 12.3X48-D80 and later | — | No fix listed | CNA |
- Junos OS VendorJuniper Affected 12.3X48-D80 and later Fixed in — No fix listed CNA
CPE configurations NVD · 26
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:juniper:junos:12.3x48:-:*:*:*:*:*:* | 12.3x48 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:12.3x48:d10:*:*:*:*:*:* | 12.3x48 d10 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:12.3x48:d15:*:*:*:*:*:* | 12.3x48 d15 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:12.3x48:d20:*:*:*:*:*:* | 12.3x48 d20 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:12.3x48:d25:*:*:*:*:*:* | 12.3x48 d25 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:12.3x48:d30:*:*:*:*:*:* | 12.3x48 d30 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:12.3x48:d35:*:*:*:*:*:* | 12.3x48 d35 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:12.3x48:d40:*:*:*:*:*:* | 12.3x48 d40 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:12.3x48:d45:*:*:*:*:*:* | 12.3x48 d45 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:12.3x48:d50:*:*:*:*:*:* | 12.3x48 d50 | Vulnerable | Juniper |
- cpe:2.3:o:juniper:junos:12.3x48:-:*:*:*:*:*:* Versions 12.3x48 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:12.3x48:d10:*:*:*:*:*:* Versions 12.3x48 d10 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:12.3x48:d15:*:*:*:*:*:* Versions 12.3x48 d15 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:12.3x48:d20:*:*:*:*:*:* Versions 12.3x48 d20 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:12.3x48:d25:*:*:*:*:*:* Versions 12.3x48 d25 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:12.3x48:d30:*:*:*:*:*:* Versions 12.3x48 d30 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:12.3x48:d35:*:*:*:*:*:* Versions 12.3x48 d35 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:12.3x48:d40:*:*:*:*:*:* Versions 12.3x48 d40 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:12.3x48:d45:*:*:*:*:*:* Versions 12.3x48 d45 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:12.3x48:d50:*:*:*:*:*:* Versions 12.3x48 d50 Vulnerable ·Juniper
Show 16 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:juniper:junos:12.3x48:d51:*:*:*:*:*:* | 12.3x48 d51 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:12.3x48:d55:*:*:*:*:*:* | 12.3x48 d55 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:12.3x48:d60:*:*:*:*:*:* | 12.3x48 d60 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:12.3x48:d65:*:*:*:*:*:* | 12.3x48 d65 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:12.3x48:d70:*:*:*:*:*:* | 12.3x48 d70 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:12.3x48:d75:*:*:*:*:*:* | 12.3x48 d75 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:12.3x48:d80:*:*:*:*:*:* | 12.3x48 d80 | Vulnerable | Juniper |
| cpe:2.3:h:juniper:srx1500:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:srx300:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:srx4100:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:srx4200:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:srx4600:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:srx5400:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:srx550:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:srx5600:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:srx5800:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
- cpe:2.3:o:juniper:junos:12.3x48:d51:*:*:*:*:*:* Versions 12.3x48 d51 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:12.3x48:d55:*:*:*:*:*:* Versions 12.3x48 d55 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:12.3x48:d60:*:*:*:*:*:* Versions 12.3x48 d60 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:12.3x48:d65:*:*:*:*:*:* Versions 12.3x48 d65 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:12.3x48:d70:*:*:*:*:*:* Versions 12.3x48 d70 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:12.3x48:d75:*:*:*:*:*:* Versions 12.3x48 d75 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:12.3x48:d80:*:*:*:*:*:* Versions 12.3x48 d80 Vulnerable ·Juniper
- cpe:2.3:h:juniper:srx1500:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:srx300:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:srx4100:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:srx4200:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:srx4600:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:srx5400:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:srx550:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:srx5600:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:srx5800:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-1634
- 2026-10-03 Alias added: GHSA-h7f7-r6mm-7w8h
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-2020-1634 · CVE Program
- CVE-2020-1634 · NVD
- FIRST EPSS
- GHSA-h7f7-r6mm-7w8h · GitHub Advisory Database · CC BY 4.0
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