CVE-2026-102027
Last modified
CVE-2026-102027 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An Incorrect Calculation of Buffer Size vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a configured eBGP neighbor to cause an rpd crash via BGP labeled-unicast UPDATEs when the affected multipath features are enabled.. EPSS estimates a 0.46% chance of exploitation in the next 30 days.
Description
An Incorrect Calculation of Buffer Size vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a configured eBGP neighbor to cause an rpd crash via BGP labeled-unicast UPDATEs when the affected multipath features are enabled.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Juniper Networks | Junos OS | >= 24.4, < 24.4R2-S5; >= 25.2, < 25.2R2-S2; >= 25.4, < 25.4R1-S3; >= 26.2, < 26.2R1-S2 |
| Juniper Networks | Junos OS Evolved | >= 24.4, < 24.4R2-S5-EVO; >= 25.2, < 25.2R2-S2-EVO; >= 25.4, < 25.4R1-S3-EVO; >= 26.2, < 26.2R1-S2-EVO; >= 25.2X100, < 25.2X100-D35-EVO; >= 25.4X300, < 25.4X300-D40-EVO |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-102027?
How severe is CVE-2026-102027?
How do I fix CVE-2026-102027?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-102021A NULL Pointer Dereference vulnerability in the routing prot…6.5
- CVE-2026-102022A Reachable Assertion vulnerability in the routing protocol …7.5
- CVE-2026-102023A Reachable Assertion vulnerability in fwstatsd of Juniper N…7.5
- CVE-2026-102024An Integer Overflow or Wraparound vulnerability in the routi…7.5
- CVE-2026-102025A Mismatched Memory Management Routines vulnerability in the…7.5
- CVE-2026-102026An Improper Control of a Resource Through its Lifetime vulne…7.5
- CVE-2026-102028A NULL Pointer Dereference vulnerability in the routing prot…7.5
- CVE-2026-102029A NULL Pointer Dereference vulnerability in the routing prot…7.5
- CVE-2026-10203A security flaw has been discovered in OFCMS 1.1.3. Impacted…6.3
- CVE-2026-102030An Incomplete Cleanup vulnerability in the rpd process of Ju…7.5
- CVE-2026-102031An OS Command Injection vulnerability in TACACS of Juniper N…9.8
- CVE-2026-102032A Missing Release of Memory after Effective Lifetime vulnera…6.5
Are you affected by CVE-2026-102027?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST
