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.
Critical 9.8
CVE-2026-101950
Juniper Networks Junos OS — buffer overflow.
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…
WeaknessCWE-122: Heap buffer overflow
Published Updated Source NVD
CVSS 3.1
9.8
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploit chance, 30 days
0.5%
Higher than 40% of all CVEs (EPSS)
Status
No known exploitation
Not in CISA KEV
Patch
Unknown
Check the vendor advisory
What happened
What to do
- 01Check whether you run Juniper Networks Junos OS, and which version.
- 02Follow the vendor advisory for a fix or a workaround.
References
Timeline · UTC
- Published to NVD
- NVD record updated
Also actively exploited
Other CVEs in Juniper Networks Junos OS
13 more CVEs
9.8Juniper Networks Junos OS — buffer overflow.EPSS 0.6%9.8Juniper Networks Junos OS — remote code execution.EPSS 0.5%9.8Juniper Networks Junos OS — authentication bypass.EPSS 0.5%9.8Juniper Networks Junos OS — remote code execution.EPSS 0.6%9.8Juniper Networks Junos OS — buffer overflow.EPSS 0.7%9.8Juniper Networks Junos OS — buffer overflow.EPSS 0.6%