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Vendor/product archive

juniper / ex4300 CVEs

Beta · best-effort

44 CVEs tagged to juniper / ex43003 Critical, 20 High, 21 Medium, 0 Low, 0 Unrated.

CVE-2026-57025

Published Jul 9, 2026

A Return of Pointer Value Outside of Expected Range vulnerability in the fileio library of Juniper Networks Junos OS and Junos OS Evolved allows a local, low-privilged attacker to…

CVSS 6.8 · Medium
evidence mentions
1
Buzz score
11.9

CVE-2026-33781

Published Apr 9, 2026

An Improper Check for Unusual or Exceptional Conditions vulnerability in the packet forwarding engine (pfe) of Juniper Networks Junos OS on specific EX and QFX Series devices allo…

CVSS 7.1 · High
evidence mentions
1
Buzz score
11.9

CVE-2026-33773

Published Apr 9, 2026

An Incorrect Initialization of Resource vulnerability in the packet forwarding engine (pfe) of Juniper Networks Junos OS on specific EX Series and QFX Series device allows an unau…

CVSS 6.9 · Medium
evidence mentions
1
Buzz score
11.9

CVE-2026-21910

Published Jan 15, 2026

An Improper Check for Unusual or Exceptional Conditions vulnerability in the packet forwarding engine (PFE) of Juniper Networks Junos OS on EX4k Series and QFX5k Series platforms…

CVSS 7.1 · High
evidence mentions
2
Buzz score
17.5

CVE-2025-30644

Published Apr 9, 2025

A Heap-based Buffer Overflow vulnerability in the flexible PIC concentrator (FPC) of Juniper Networks Junos OS on EX2300, EX3400, EX4100, EX4300, EX4300MP, EX4400, EX4600, EX4650-…

CVSS 7.7 · High

CVE-2022-22191

Published Apr 14, 2022

A Denial of Service (DoS) vulnerability in the processing of a flood of specific ARP traffic in Juniper Networks Junos OS on the EX4300 switch, sent from the local broadcast domai…

CVSS 6.5 · Medium
Vendor/product tagsBeta · best-effort

CVE-2021-0243

Published Apr 22, 2021

Improper Handling of Unexpected Data in the firewall policer of Juniper Networks Junos OS on EX4300 switches allows matching traffic to exceed set policer limits, possibly leading…

CVSS 4.7 · Medium
Vendor/product tagsBeta · best-effort

CVE-2021-0242

Published Apr 22, 2021

A vulnerability due to the improper handling of direct memory access (DMA) buffers on EX4300 switches on Juniper Networks Junos OS allows an attacker sending specific unicast fram…

CVSS 6.5 · Medium
Vendor/product tagsBeta · best-effort
Showing 1-25 of 44 CVEsPage 1 of 2