- 7.5HighCVSS base score
- 1.1%Exploitation in 30 daysEPSS · top 33% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
When BGP tracing is enabled an incoming BGP message may cause the Junos OS routing protocol daemon (rpd) process to crash and restart. While rpd restarts after a crash, repeated crashes can result in an extended DoS condition. Affected releases are Juniper Networks Junos OS: 16.1 versions prior to 16.1R7-S4, 16.1R7-S5; 16.2 versions prior to 16.2R2-S9, 16.2R3; 17.1 versions prior to 17.1R3; 17.2 versions prior to 17.2R3-S1; 17.3 versions prior to 17.3R3-S3, 17.3R3-S4, 17.3R4; 17.4 versions prior to 17.4R1-S7, 17.4R2-S3, 17.4R2-S4, 17.4R3; 18.1 versions prior to 18.1R2-S4, 18.1R3-S4, 18.1R4; 18.2 versions prior to 18.2R2-S2, 18.2R2-S3, 18.2R3; 18.2X75 versions prior to 18.2X75-D40; 18.3 versions prior to 18.3R1-S3, 18.3R2; 18.4 versions prior to 18.4R1-S2, 18.4R2. This issue does not affect Junos releases prior to 16.1R1.
Timeline
ID reserved
By juniper
- 6 months later
· 6 months later
Published
- 5 years later
· 5 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| juniperCNA (assigner) | 3.0 | High7.5 | CVSS:3.0/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)
- 1.1% · top 33% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
- affected 16.1 – < 16.1R7-S4, 16.1R7-S5
- affected 16.2 – < 16.2R2-S9, 16.2R3
- affected 17.1 – < 17.1R3
- affected 17.2 – < 17.2R3-S1
- affected 17.3 – < 17.3R3-S3, 17.3R3-S4, 17.3R4
- affected 17.4 – < 17.4R1-S7, 17.4R2-S3, 17.4R2-S4, 17.4R3
- affected 18.1 – < 18.1R2-S4, 18.1R3-S4, 18.1R4
- affected 18.2 – < 18.2R2-S2, 18.2R2-S3, 18.2R3
- affected 18.2X75 – < 18.2X75-D40
- affected 18.3 – < 18.3R1-S3, 18.3R2
- affected 18.4 – < 18.4R1-S2, 18.4R2
- unaffected all – < 16.1
What to do
Solution: The following software releases have been updated to resolve this specific issue: 16.1R7-S4, 16.1R7-S5, 16.2R2-S9, 16.2R3, 17.1R3, 17.2R3-S1, 17.3R3-S3, 17.3R3-S4, 17.3R4, 17.4R1-S7, 17.4R2-S3, 17.4R2-S4, 17.4R3, 18.1R2-S4, 18.1R3-S4, 18.1R4, 18.2R2-S2, 18.2R2-S3, 18.2R3, 18.2X75-D40, 18.3R1-S3, 18.3R2, 18.4R1-S2, 18.4R2, 19.1R1, and all subsequent releases.
Workaround: The issue can be mitigated by disabling BGP tracing. Use authentication for BGP (tcp-md5, ipsec, etc.) to mitigate the issue.
Exploitation: Juniper SIRT is not aware of any malicious exploitation of this vulnerability.
References
References2
- https://kb.juniper.net/JSA10931 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 107893 (opens in a new tab)vdb-entryx_refsource_BIDx_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)
- EUVD EUVD-2019-0826 (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://cveledger.app/cve/CVE-2019-0019)Record last updated .