CVE-2025-59959

Routing daemon restart via untrusted pointer dereference

Published Jan 15, 2026 · Updated Jan 15, 2026

Untrusted pointer dereference in rpd on Juniper Networks Junos OS and Junos OS Evolved allows local users to restart the daemon. The rpd route-display path dereferences an untrusted pointer while formatting detailed BGP output for a route with specific attributes. Low-privileged authenticated CLI access is sufficient; the resulting crash interrupts and restarts rpd, while extensive output is unaffected.

CVSS severity6.8
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Untrusted pointer dereference in rpd on Juniper Networks Junos OS and Junos OS Evolved allows local users to restart the daemon. The rpd route-display path dereferences an untrusted pointer while formatting detailed BGP output for a route with specific attributes. Low-privileged authenticated CLI access is sufficient; the resulting crash interrupts and restarts rpd, while extensive output is unaffected.

The record

CVE
CVE-2025-59959
Published
Jan 15, 2026
Updated
Jan 15, 2026
Vendor
Juniper Networks
Product
Junos OS Evolved
Classifications
CWE-822, T1489
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 15, 2026Record 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 <22.4R3-S8-EVO
  2. Affected versionversion=23.2 <23.2R2-S5-EVO
  3. Affected versionversion=23.4 <23.4R2-S6-EVO
  4. Affected versionversion=24.2 <24.2R2-S2-EVO
  5. Affected versionversion=24.4 <24.4R2-EVO

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Juniper Networks · Junos OS Evolvedversion=0 <22.4R3-S8-EVO; version=23.2 <23.2R2-S5-EVO; version=23.4 <23.4R2-S6-EVO; version=24.2 <24.2R2-S2-EVO; version=24.4 <24.4R2-EVO
Juniper Networks · Junos OSversion=0 <22.4R3-S8; version=23.2 <23.2R2-S5; version=23.4 <23.4R2-S5; version=24.2 <24.2R2-S2; version=24.4 <24.4R2

Published CVSS scores

6.8Juniper NetworksCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L
5.5Juniper NetworksCVSS:3.1/AV:L/AC:L/PR:L/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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-822Untrusted Pointer Dereference
T1489Service Stop

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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