CVE-2020-1650
Junos OS: MX Series: Denial of Service vulnerability in MS-PIC component on MS-MIC or MS-MPC
- Published
- Updated
- Reserved
- Assigned by
- juniper
Description
On Juniper Networks Junos MX Series with service card configured, receipt of a stream of specific packets may crash the MS-PIC component on MS-MIC or MS-MPC. By continuously sending these specific packets, an attacker can repeatedly bring down MS-PIC on MS-MIC/MS-MPC causing a prolonged Denial of Service. This issue affects MX Series devices using MS-PIC, MS-MIC or MS-MPC service cards with any service configured. This issue affects Juniper Networks Junos OS on MX Series: 17.2R2-S7; 17.3R3-S4, 17.3R3-S5; 17.4R2-S4 and the subsequent SRs (17.4R2-S5, 17.4R2-S6, etc.); 17.4R3; 18.1R3-S3, 18.1R3-S4, 18.1R3-S5, 18.1R3-S6, 18.1R3-S7, 18.1R3-S8; 18.2R3, 18.2R3-S1, 18.2R3-S2; 18.3R2 and the SRs based on 18.3R2; 18.4R2 and the SRs based on 18.4R2; 19.1R1 and the SRs based on 19.1R1; 19.2R1 and the SRs based on 19.2R1; 19.3R1 and the SRs based on 19.3R1.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| juniperCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 1.0% · top 36% of all CVEs (6 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
- TBD
Affected products
- affected 17.2R2-S7
- affected 17.3R3-S4, 17.3R3-S5
- affected 17.4R3
- affected 18.1R3-S3, 18.1R3-S4, 18.1R3-S5, 18.1R3-S6, 18.1R3-S7, 18.1R3-S8
- affected 18.2R3, 18.2R3-S1, 18.2R3-S2
- affected 17.4R2-S4 – < 17.4*
- affected 18.3R2 – < 18.3*
- affected 18.4R2 – < 18.4*
- affected 19.1R1 – < 19.1*
- affected 19.2R1 – < 19.2*
- affected 19.3R1 – < 19.3*
What to do
Solution: The following software releases have been updated to resolve this specific issue: 17.2R2-S8, 17.3R3-S6, 17.4R3-S1, 18.1R3-S9, 18.2R3-S3, 18.3R3, 18.4R3, 19.1R2, 19.2R2, 19.3R2, 19.4R1, and all subsequent releases.
Workaround: There are no known workarounds for this issue.
Exploitation: Juniper SIRT is not aware of any malicious exploitation of this vulnerability.
References (1)
- https://kb.juniper.net/JSA11037 (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2020-1650)Record last updated .