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CVE-2025-59969

Junos OS Evolved: QFX5000 Series and PTX Series: An attacker sending crafted multicast packets will cause evo-aftmand / evo-pfemand to crash and restart

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 22.4R3-S8-EVO, 23.2R2-S5-EVO, 23.4R2-EVO, 24.2R2-EVO, 24.4R2-EVO, and 5 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

A Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in the advanced forwarding toolkit (evo-aftmand/evo-pfemand) of Juniper Networks Junos OS Evolved on PTX Series or QFX5000 Series allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS).An attacker sending crafted multicast packets will cause line cards running evo-aftmand/evo-pfemand to crash and restart or non-line card devices to crash and restart. Continued receipt and processing of these packets will sustain the Denial of Service (DoS) condition. This issue affects Junos OS Evolved PTX Series: • All versions before 22.4R3-S8-EVO, • from 23.2 before 23.2R2-S5-EVO, • from 23.4 before 23.4R2-EVO, • from 24.2 before 24.2R2-EVO, • from 24.4 before 24.4R2-EVO. This issue affects Junos OS Evolved on QFX5000 Series: • 22.2-EVO version before 22.2R3-S7-EVO, • 22.4-EVO version before 22.4R3-S7-EVO, • 23.2-EVO versions before 23.2R2-S4-EVO, • 23.4-EVO versions before 23.4R2-S5-EVO, • 24.2-EVO versions before 24.2R2-S1-EVO, • 24.4-EVO versions before 24.4R1-S3-EVO, 24.4R2-EVO. This issue does not affect Junos OS Evolved on QFX5000 Series versions before: 21.2R2-S1-EVO, 21.2R3-EVO, 21.3R2-EVO, 21.4R1-EVO, and 22.1R1-EVO.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • Juniper Networks Junos OS Evolved

    fixed in 22.4R3-S8-EVO; From 23.2 · fixed in 23.2R2-S5-EVO; From 23.4 · fixed in 23.4R2-EVO; From 24.2 · fixed in 24.2R2-EVO; From 24.4 · fixed in 24.4R2-EVO

  • Juniper Networks Junos OS Evolved

    From 22.2 · fixed in 22.2R3-S7-EVO; From 22.4 · fixed in 22.4R3-S7-EVO; From 23.2 · fixed in 23.2R2-S4-EVO; From 23.4 · fixed in 23.4R2-S5-EVO; From 24.2 · fixed in 24.2R2-S1-EVO

References 1

kb.juniper.net