Affects Juniper routing daemon used across enterprise and service-provider networks; can cause routing outages and broad disruption.
CVE-2026-102022
Crafted BGP-LS NLRI can crash Juniper rpd, causing routing outages.
Is CVE-2026-102022 being exploited?
Not confirmed. CVE-2026-102022 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.46% probability of exploitation in the next 30 days.
How severe is CVE-2026-102022?
CVE-2026-102022 is rated High with a CVSS score of 8.7. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-102022?
Not known from our data. No patch reference has been recorded for CVE-2026-102022, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-102022 affect?
CVE-2026-102022 affects Juniper Junos OS rpd, Junos OS Evolved rpd, Devices configured with BGP-LS peers. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-102022?
Follow Juniper advisory, restrict/ACL BGP-LS peers, monitor rpd and apply vendor fixes ASAP
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote DoS: attacker with access to a configured BGP-LS peer can crash rpd via crafted Link NLRI, causing routing disruption and outages.
Immediate action required
- affected>= 24.4 and < 24.4R2-S5
- affected>= 25.2 and < 25.2R2-S2
- affected>= 25.4 and < 25.4R1-S3
- affected>= 26.2 and < 26.2R1-S2
- affected>= 24.4 and < 24.4R2-S5-EVO
- affected>= 25.2 and < 25.2R2-S2-EVO
- affected>= 25.4 and < 25.4R1-S3-EVO
- affected>= 26.2 and < 26.2R1-S2-EVO
- affected>= 25.2X100 and < 25.2X100-D35-EVO
- affected>= 25.4X300 and < 25.4X300-D40-EVO
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.