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CVE-2024-21591: Critical Junos OS Vulnerability Could lead to Unauthenticated Remote Code Execution

ID: 90a0a7e0-75e7-5423-bb80-527dbb8627ad

STIX ID: report--90a0a7e0-75e7-5423-bb80-527dbb8627ad

Feed Name: Arctic Wolf

Threat Score
25/100

Date Published: 2024-01-22

Date Updated: 2026-07-27

Author: Steven Campbell

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The provided table lists Junos OS SRX and EX Series affected versions (various releases earlier than 20.4R3-S9, 21.2R3-S7, 21.3R3-S5, 21.4R3-S5, 22.1R3-S4, 22.2R3-S3, 22.3R3-S2, 22.4R2-S2/22.4R3) and the corresponding fixed versions (20.4R3-S9 through 23.4R1). No further context, vulnerability details, CVE IDs, or exploitation information is provided.

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