CVE-2026-33793
published 2026-04-09CVE-2026-33793: An Execution with Unnecessary Privileges vulnerability in the User Interface (UI) of Juniper Networks Junos OS and Junos OS Evolved allows a local…
PriorityP345high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.16%
5.5th percentile
An Execution with Unnecessary Privileges vulnerability in the User Interface (UI) of Juniper Networks Junos OS and Junos OS Evolved allows a local, low-privileged attacker to gain root privileges, thus compromising the system.
When a configuration that allows unsigned Python op scripts is present on the device, a non-root user is able to execute malicious op scripts as a root-equivalent user, leading to privilege escalation.
This issue affects Junos OS:
* All versions before 22.4R3-S7,
* from 23.2 before 23.2R2-S4,
* from 23.4 before 23.4R2-S6,
* from 24.2 before 24.2R1-S2, 24.2R2,
* from 24.4 before 24.4R1-S2, 24.4R2;
Junos OS Evolved:
* All versions before 22.4R3-S7-EVO,
* from 23.2 before 23.2R2-S4-EVO,
* from 23.4 before 23.4R2-S6-EVO,
* from 24.2 before 24.2R2-EVO,
* from 24.4 before 24.4R1-S1-EVO, 24.4R2-EVO.
Affected
23 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| juniper | junos | < 22.4 | 22.4 |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos_os | — | — |
| juniper | junos_os_evolved | < 22.4 | 22.4 |
| juniper | junos_os_evolved | — | — |
| juniper | junos_os_evolved | — | — |
| juniper | junos_os_evolved | — | — |
| juniper | junos_os_evolved | — | — |
| juniper | junos_os_evolved | — | — |
| juniper_networks | junos_os | < 22.4R3-S7 | 22.4R3-S7 |
| juniper_networks | junos_os | >= 23.2 < 23.2R2-S4 | 23.2R2-S4 |
| juniper_networks | junos_os | >= 23.4 < 23.4R2-S6 | 23.4R2-S6 |
| juniper_networks | junos_os | >= 24.2 < 24.2R1-S2, 24.2R2 | 24.2R1-S2, 24.2R2 |
| juniper_networks | junos_os | >= 24.4 < 24.4R1-S2, 24.4R2 | 24.4R1-S2, 24.4R2 |
| juniper_networks | junos_os_evolved | < 22.4R3-S7-EVO | 22.4R3-S7-EVO |
| juniper_networks | junos_os_evolved | >= 23.2 < 23.2R2-S4-EVO | 23.2R2-S4-EVO |
| juniper_networks | junos_os_evolved | >= 23.4 < 23.4R2-S6-EVO | 23.4R2-S6-EVO |
| juniper_networks | junos_os_evolved | >= 24.2 < 24.2R2-EVO | 24.2R2-EVO |
| juniper_networks | junos_os_evolved | >= 24.4 < 24.4R1-S1-EVO, 24.4R2-EVO | 24.4R1-S1-EVO, 24.4R2-EVO |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv4.08.5HIGHCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/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:U/V:C/RE:M/U:Amber
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Juniper
CVE-2026-33793: An Execution with Unnecessary Privileges vulnerability in the User Interface (UI) of Juniper Networks Junos OS and Junos OS Evolved allows a local, lo
vendor_juniper·2026-04-09·CVSS 7.8
CVE-2026-33793 [HIGH] CWE-250 CVE-2026-33793: An Execution with Unnecessary Privileges vulnerability in the User Interface (UI) of Juniper Networks Junos OS and Junos OS Evolved allows a local, lo
CVE-2026-33793: An Execution with Unnecessary Privileges vulnerability in the User Interface (UI) of Juniper Networks Junos OS and Junos OS Evolved allows a local, low-privileged attacker to gain root privileges, thus compromising the system.
When a configuration that allows unsigned Python op scripts is present on the device, a non-root user is able to execute malicious op scripts as a root-equivalent user, leading to privilege escalation.
This issue affects Junos OS:
* All versions before 22.4R3-S7,
* from 23.2 before 23.2R2-S4,
* from 23.4 before 23.4R2-S6,
* from 24.2 before 24.2R1-S2, 24.2R2,
* from 24.4 before 24.4R1-S2, 24.4R2;
Junos OS Evolved:
* All versions before 22.4R3-S7-EVO,
* from 23.2 before 23.2R2-S4-EVO,
* from 23.4 before 23.4R2-S6-EVO,
* from 24.2 before 24.2R2-E
VulDB
Juniper Junos OS/Junos OS Evolved User Interface unnecessary privileges (JSA103142)
vuldb·2026-04-10·CVSS 8.5
CVE-2026-33793 [HIGH] Juniper Junos OS/Junos OS Evolved User Interface unnecessary privileges (JSA103142)
A vulnerability categorized as critical has been discovered in Juniper Junos OS and Junos OS Evolved. This impacts an unknown function of the component User Interface. Executing a manipulation can lead to execution with unnecessary privileges.
This vulnerability appears as CVE-2026-33793. The attack requires local access. There is no available exploit.
It is advisable to upgrade the affected component.
GHSA
GHSA-fc25-pm3m-2gqh: An Execution with Unnecessary Privileges vulnerability in the User Interface (UI) of Juniper Networks Junos OS and Junos OS Evolved allows a local, lo
ghsa_unreviewed·2026-04-10
CVE-2026-33793 [HIGH] CWE-250 GHSA-fc25-pm3m-2gqh: An Execution with Unnecessary Privileges vulnerability in the User Interface (UI) of Juniper Networks Junos OS and Junos OS Evolved allows a local, lo
An Execution with Unnecessary Privileges vulnerability in the User Interface (UI) of Juniper Networks Junos OS and Junos OS Evolved allows a local, low-privileged attacker to gain root privileges, thus compromising the system.
When a configuration that allows unsigned Python op scripts is present on the device, a non-root user is able to execute malicious op scripts as a root-equivalent user, leading to privilege escalation.
This issue affects Junos OS:
* All versions before 22.4R3-S7,
* from 23.2 before 23.2R2-S4,
* from 23.4 before 23.4R2-S6,
* from 24.2 before 24.2R1-S2, 24.2R2,
* from 24.4 before 24.4R1-S2, 24.4R2;
Junos OS Evolved:
* All versions before 22.4R3-S7-EVO,
* from 23.2 before 23.2R2-S4-EVO,
* from 23.4 before 23.4R2-S6-EVO,
* from 24.2 before 24.2R2-EVO,
* from 24.4
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-04-09
Published