Buffer overflow in Juniper Networks Junos OS
CVE-2026-101950
A Heap-based Buffer Overflow vulnerability in the SVR component of Juniper Networks Junos OS on SRX Series allows an unauthenticated network attacker to cause a denial of service and potentially compromise confidentiality and integrity via malformed IPv4 packets reaching an interface configured for Secure Vector Routing.
Vulnerability class: Buffer Overflow
Published .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- supportportal.juniper.net/JSA112186 (vendor-advisory)
Frequently asked questions
- What is CVE-2026-101950?
- CVE-2026-101950 is a critical-severity vulnerability in Juniper Networks Junos OS, classified under Heap-based Buffer Overflow. CVSS score: 9.8/10. Published 2026-10-14.
- How severe is CVE-2026-101950?
- Critical severity. CVSS v3 base score is 9.8 out of 10.