CVE-2026-101937: CWE-195 Signed to Unsigned Conversion Error in Juniper Networks Junos OS
Description
A Signed to Unsigned Conversion Error vulnerability in the srxpfe of Juniper Networks Junos OS on the SRX Series allows an adjacent attacker to cause a denial of service of the data plane via chassis-cluster fabric traffic.
CVSS v3.1
Score 6.5medium
Affected software
Juniper Networks
Junos OS
pkg:github/juniper-networks/junos-osRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a signed to unsigned conversion error in the srxpfe component of Juniper Networks Junos OS running on SRX Series devices. An adjacent attacker can exploit this flaw by sending crafted chassis-cluster fabric traffic, resulting in a denial of service condition affecting the data plane. The issue impacts several Junos OS versions prior to the indicated patch releases across multiple release trains.
Potential Impact
The vulnerability allows an adjacent attacker to cause a denial of service on the data plane of affected SRX Series devices. There is no impact on confidentiality or integrity reported. The denial of service could disrupt network traffic passing through the device.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the current data. Until a patch is available, monitor vendor advisories for updates and consider network segmentation or limiting adjacency where feasible to reduce exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- juniper
- Date Reserved
- 2026-09-28T16:22:33.604Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6acfb66e2cdf04f6569794f6
Added to database: 10/14/2026, 17:05:50 UTC
Last enriched: 10/14/2026, 17:35:17 UTC
Last updated: 10/14/2026, 20:49:11 UTC
Views: 5
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