CVE-2024-47498

Traffic interruption via unenforced MAC learning limits

Published Oct 11, 2024 · Updated Oct 11, 2024

Unimplemented CLI controls in affected Juniper Networks Junos OS Evolved releases allow adjacent attackers to interrupt traffic. The CLI accepts MAC learning and move limit statements on QFX5000 Series devices, but the configured limits do not take effect. An unauthenticated attacker on an adjacent network can drive excessive MAC learning or moves, overload the control plane, and severely impair legitimate traffic processing.

CVSS severity7.1
High
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unimplemented CLI controls in affected Juniper Networks Junos OS Evolved releases allow adjacent attackers to interrupt traffic. The CLI accepts MAC learning and move limit statements on QFX5000 Series devices, but the configured limits do not take effect. An unauthenticated attacker on an adjacent network can drive excessive MAC learning or moves, overload the control plane, and severely impair legitimate traffic processing.

The record

CVE
CVE-2024-47498
Published
Oct 11, 2024
Updated
Oct 11, 2024
Vendor
Juniper Networks
Product
Junos OS Evolved
Classifications
CWE-447, T1499.002
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 11, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 11, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <21.4R3-S8-EVO
  2. Affected versionversion=22.2-EVO <22.2R3-S5-EVO
  3. Affected versionversion=22.4-EVO <22.4R3-EVO
  4. Affected versionversion=23.2-EVO <23.2R2-EVO

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Juniper Networks · Junos OS Evolvedversion=0 <21.4R3-S8-EVO; version=22.2-EVO <22.2R3-S5-EVO; version=22.4-EVO <22.4R3-EVO; version=23.2-EVO <23.2R2-EVO

Published CVSS scores

7.1Juniper NetworksCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:L
6.5Juniper NetworksCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-447Unimplemented or Unsupported Feature in UI
T1499.002Service Exhaustion Flood

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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