CVE-2026-101980
Juniper Networks Junos OS
- Juniper Networks Junos OS
- Critical
- CVSS 9.3
- EPSS 0.47%
- Fixed version listed
What to do
Fixed version listed
Affected products
| Product | Affected | Fixed in |
|---|---|---|
| Juniper Networks Junos OS | before 23.2R2-S7.7; from 23.4, before 23.4R2-S8.13; from 24.2, before 24.2R2-S5.5; from 24.4, before 24.4R2-S5; from 25.2, before 25.2R2-S2; from 25.4, before 25.4R1-S3; from 26.2, before 26.2R1-S2 | 23.2R2-S7.7, 23.4R2-S8.13, 24.2R2-S5.5, 24.4R2-S5, 25.2R2-S2, 25.4R1-S3, 26.2R1-S2 |
Advisories and fixes
- Vendor advisory supportportal.juniper.net
Scores and signals
- Exploitation
- No known exploitation
- Severity
- Critical, CVSS 9.3 (v4.0, scored by juniper)
- EPSS
- 0.47% chance of exploitation in the next 30 days (EPSS from FIRST, as of Oct 24, 2026)
- CISA's SSVC decision points
- Exploitation: none. Automatable: yes. Technical impact: partial. As of Oct 14, 2026.
- Weakness
- CWE-191: Integer Underflow (Wrap or Wraparound)
- Vendor
- Juniper Networks, Junos OS
Timeline
- First listed as critical by cve.now. Affected and fixed versions come from the CVE record, once one is published.