CVE-2026-101937
Junos OS: SRX Series: An attacker causes data-plane denial of service when chassis-cluster high availability is used
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.
Attack profile
How easy it is to exploit
- Attack vector
- Adjacent network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Junos OS: SRX Series: An attacker causes data-plane denial of service when chassis-cluster high availability is used
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.
- Record
CVE-2026-101937- CVSS 4.0
- 7.1 High
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/R:A/V:C/RE:M - CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-195
- Updated
- 2026-11-02
EUVDEUVD-2026-101489
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.
- Record
EUVD-2026-101489- CVSS 4.0
- 7.1 High
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/R:A/V:C/RE:M - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-4w4g-6ffw-r3vg
A Signed to Unsigned Conversion Error vulnerability in the srxpfe of Juniper Networks Junos OS on...
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.
- Record
GHSA-4w4g-6ffw-r3vg- CVSS 4.0
- 7.1 High
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:A/V:C/RE:M/U:X - CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-195
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-101937- CVSS 4.0
- 7.1 High
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:A/V:C/RE:M/U:X - CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-195
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-101937 is a high vulnerability (CVSS 7.1) in Juniper Networks Junos Os, published October 14, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.23%, the 14th percentile. No source names a fixed version.