Dashboard / CVE-2026-33803

CVE-2026-33803

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 74/100
Published: 2026-07-09 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: X
AT: None
VC: Low
VI: None
VA: Low

Description

An Improper Restriction of Communication Channel to Intended Endpoints vulnerability in Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause a limited information disclosure and availability impact to the device. Due to a wrong initialization, a process which should only be able to communicate internally within the device can be reached over the network via an open port. This leads to a device being inadvertently exposed and increased CPU cycles spent processing ingress packets. This issue affects Junos OS Evolved: * all versions before 23.2R2-S7-EVO, * 23.4 versions before 23.4R2-S8-EVO, * 24.2 versions before 24.2R2-S5-EVO, * 24.4 versions before 24.4R2-S4-EVO, * 25.2 versions before 25.2R2-S1-EVO, * 25.4 versions before 25.4R1-S2-EVO.

Weakness Classification (1)

Affected Software (48)

VendorProductVersion
juniper junos_os_evolved < 23.2
juniper junos_os_evolved 23.2
juniper junos_os_evolved 23.2
juniper junos_os_evolved 23.2
juniper junos_os_evolved 23.2
juniper junos_os_evolved 23.2
juniper junos_os_evolved 23.2
juniper junos_os_evolved 23.2
juniper junos_os_evolved 23.2
juniper junos_os_evolved 23.2
juniper junos_os_evolved 23.2
juniper junos_os_evolved 23.2
juniper junos_os_evolved 23.4
juniper junos_os_evolved 23.4
juniper junos_os_evolved 23.4
juniper junos_os_evolved 23.4
juniper junos_os_evolved 23.4
juniper junos_os_evolved 23.4
juniper junos_os_evolved 23.4
juniper junos_os_evolved 23.4
juniper junos_os_evolved 23.4
juniper junos_os_evolved 23.4
juniper junos_os_evolved 23.4
juniper junos_os_evolved 23.4
juniper junos_os_evolved 24.2
juniper junos_os_evolved 24.2
juniper junos_os_evolved 24.2
juniper junos_os_evolved 24.2
juniper junos_os_evolved 24.2
juniper junos_os_evolved 24.2
Showing 30 of 48 entries

References & Advisories (1)

Bug Bounty Relevance

74 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

6.9 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/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:X/RE:M/U:X

EPSS — Exploitation Probability

0.35%
Raw Score 0.003530
Percentile 29.0%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00353
2026-10-28
0.00353

Intelligence Sources

nvd ref →

External Links