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CVE-2025-52984VulnerabilityPublished Updated

CVE-2025-52984: Juniper Networks Junos OS · NULL Pointer Dereference

Affects Juniper Networks Junos OSSource CVE Database V5

0

Not known to be exploited · CVSS 5.9 Medium.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 3.1 base score
5.9Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 40% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 Jul 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.

What to do

Affected software

ProductAffectedFixed in
Juniper Networks Junos OSAffected
  • =0
  • =21.4
  • =22.2
  • =22.4
  • =23.2
  • =23.4
  • =24.2
Fixed in–

AI-suggested

Organizations should prioritize upgrading affected Junos OS and Junos OS Evolved devices to the fixed versions listed by Juniper Networks as soon as possible. In the interim, network administrators should audit routing configurations to identify static routes with reject next hops and consider temporarily removing or modifying these routes to avoid triggering the vulnerability. Limiting or restricting gNMI access to trusted management networks and enforcing strict access controls can reduce exposure. Deploying network segmentation to isolate management interfaces and monitoring for unusual gNMI queries or rpd process restarts can help detect exploitation attempts. Additionally, implementing redundancy and failover mechanisms for critical routing devices can mitigate the impact of transient outages caused by rpd crashes. Regularly reviewing Juniper security advisories and applying patches promptly is essential to maintain network resilience.

Description

A NULL Pointer Dereference vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, network-based attacker to cause impact to the availability of the device. When static route points to a reject next hop and a gNMI query is processed for that static route, rpd crashes and restarts. This issue affects: Junos OS:  * all versions before 21.2R3-S9, * 21.4 versions before 21.4R3-S10,  * 22.2 versions before 22.2R3-S6, * 22.4 versions before 22.4R3-S6, * 23.2 versions before 23.2R2-S3, * 23.4 versions before 23.4R2-S4, * 24.2 versions before 24.2R1-S2, 24.2R2; Junos OS Evolved: * all versions before 22.4R3-S7-EVO, * 23.2-EVO versions before 23.2R2-S3-EVO, * 23.4-EVO versions before 23.4R2-S4-EVO, * 24.2-EVO versions before 24.2R2-EVO.

References

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