VDB
CVE-2026-33788
CVE-2026-33788
PUBLISHED
CVSS 7.800000190734863 HIGH
A Missing Authentication for Critical Function vulnerability in the Flexible PIC Concentrators (FPCs) of Juniper Networks Junos OS Evolved on PTX Series allows a local, authenticated attacker with low privileges to gain direct access to FPCs installed in the device. A local user with low privileges can gain direct access to the installed FPCs as a high privileged user, which can potentially lead to a full compromise of the affected component. This issue affects Junos OS Evolved on PTX10004, PTX10008, PTX100016, with JNP10K-LC1201 or JNP10K-LC1202: * All versions before 21.2R3-S8-EVO, * 21.4-EVO versions before 21.4R3-S7-EVO, * 22.2-EVO versions before 22.2R3-S4-EVO, * 22.3-EVO versions before 22.3R3-S3-EVO, * 22.4-EVO versions before 22.4R3-S2-EVO, * 23.2-EVO versions before 23.2R2-EVO.
EPSS 0.02% · 5.1th percentile
Risk Scores
CVSS 3.1
7.800000190734863
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score
0.02%
5.1th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Juniper Networks | Junos OS Evolved | 0, 22.2-EVO, 22.3-EVO |
Exploit Intelligence
- CIRCL seen: CVE-2026-33788 (circl-sighting)
- https://kb.juniper.net/JSA107806 (circl)
Timeline
- Apr 9, 2026 CVE Published
- Apr 9, 2026 PoC Published
- May 18, 2026 EPSS Score
- May 19, 2026 EPSS Score
- May 20, 2026 EPSS Score
- May 21, 2026 EPSS Score
- May 22, 2026 EPSS Score
- May 23, 2026 EPSS Score
- May 24, 2026 EPSS Score
- May 25, 2026 EPSS Score
- May 26, 2026 EPSS Score
- May 27, 2026 EPSS Score
References
- https://supportportal.juniper.net/s/article/2026-04-Security-Bulletin-Junos-OS-SRX-Series-MX-Series-When-a-specifically-malformed-first-ISAKMP-packet-is-received-kmd-iked-crashes-CVE-2026-33778 advisory
- https://supportportal.juniper.net/s/article/2026-04-Security-Bulletin-CTP-OS-Configuring-password-requirements-does-not-work-which-permits-the-use-of-weak-passwords-CVE-2026-33771 advisory
- https://supportportal.juniper.net/s/article/2026-04-Security-Bulletin-Junos-OS-Privileged-local-user-can-gain-access-to-a-Linux-based-FPC-as-root-CVE-2025-30650 advisory
- https://supportportal.juniper.net/s/article/2026-04-Security-Bulletin-Junos-OS-SRX-Series-Insufficient-certificate-verification-for-device-to-SD-cloud-communication-CVE-2026-33779 advisory
- https://supportportal.juniper.net/s/article/2026-04-Security-Bulletin-Junos-OS-and-Junos-OS-Evolved-CVE-2022-24805-resolved-in-net-SNMP advisory
- https://supportportal.juniper.net/s/article/2026-04-Security-Bulletin-Junos-OS-MX-Series-Missing-Authorization-for-specific-request-CLI-commands-in-a-JDM-CSDS-scenario-CVE-2026-33785 advisory
- https://supportportal.juniper.net/s/article/2026-04-Security-Bulletin-Junos-OS-EX-Series-QFX-Series-In-a-VXLAN-scenario-when-specific-control-protocol-packets-are-received-memory-leaks-and-eventually-no-traffic-is-passed-CVE-2026-33781 advisory
- https://supportportal.juniper.net/s/article/2026-04-Security-Bulletin-Junos-OS-MX-Series-Mismatch-between-configured-and-received-packet-types-causes-memory-leak-in-bbe-smgd-CVE-2026-33775 advisory
- https://supportportal.juniper.net/s/article/2026-04-Security-Bulletin-Junos-OS-MX-Series-Firewall-filters-on-lo0-non-0-in-the-default-routing-instance-are-not-in-effect-CVE-2026-33774 advisory
- https://supportportal.juniper.net/s/article/2026-04-Security-Bulletin-Junos-OS-SRX1600-SRX2300-SRX4300-When-a-specific-show-command-is-executed-chassisd-crashes-CVE-2026-33786 advisory
- https://supportportal.juniper.net/s/article/2026-04-Security-Bulletin-vLWC-Default-password-is-not-required-to-be-changed-which-allows-unauthorized-high-privileged-access-CVE-2026-33784 advisory
- https://supportportal.juniper.net/s/article/2026-04-Security-Bulletin-Junos-OS-MX-Series-In-specific-DHCPv6-scenarios-jdhcpd-memory-increases-continuously-with-subscriber-logouts-CVE-2026-33782 advisory
- https://supportportal.juniper.net/s/article/2026-04-Security-Bulletin-Junos-OS-EX-Series-QFX-Series-If-the-same-egress-filter-is-configured-on-both-an-IRB-and-a-physical-interface-one-of-those-is-not-applied-CVE-2026-33773 advisory
- https://supportportal.juniper.net/s/article/2026-04-Security-Bulletin-Junos-OS-and-Junos-OS-Evolved-A-high-frequency-of-connecting-and-disconnecting-netconf-sessions-causes-management-unavailability-CVE-2026-21919 advisory
- https://supportportal.juniper.net/s/article/2026-04-Security-Bulletin-Junos-OS-and-Junos-OS-Evolved-An-attacker-sending-a-specific-genuine-BGP-packet-causes-a-BGP-reset-CVE-2026-33797 advisory
- https://supportportal.juniper.net/s/article/2026-04-Security-Bulletin-Junos-OS-and-Junos-OS-Evolved-Specific-low-privileged-CLI-command-exposes-sensitive-information-CVE-2026-33776 advisory
- https://supportportal.juniper.net/s/article/2026-04-Security-Bulletin-Junos-OS-SRX1500-SRX4100-SRX4200-SRX4600-When-a-specific-show-command-is-executed-chassisd-crashes-CVE-2026-33787 advisory
- https://supportportal.juniper.net/s/article/2026-04-Security-Bulletin-Junos-OS-SRX-Series-In-a-NAT64-configuration-receipt-of-a-specific-malformed-ICMPv6-packet-will-cause-the-srxpfe-process-to-crash-and-restart-CVE-2026-33790 advisory
- https://supportportal.juniper.net/s/article/2026-04-Security-Bulletin-Junos-OS-and-Junos-OS-Evolved-Execution-of-crafted-CLI-commands-allows-for-arbitrary-shell-injection-as-root-CVE-2026-33791 advisory
- https://supportportal.juniper.net/s/article/2026-04-Security-Bulletin-Junos-OS-A-low-privileged-user-can-escalate-their-privileges-so-that-they-can-login-as-root-CVE-2026-21916 advisory
…and 6 more