Home/CVE/A Use After Free vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved a
CVE

CVE-2024-39528

A Use After Free vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved a

A Use After Free vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an authenticated, network-based attacker to cause a Denial of Service (DoS).On all Junos OS and Junos Evolved platforms, if a routing-instance deactivation is triggered, and at the same time a specific SNMP request is received, a segmentation fault occurs which causes rpd to crash and restart. This issue affects: Junos OS: All versions before 21.2R3-S8, 21.4 versions before 21.4R3-S5, 22.2 versions before 22.2R3-S3, 22.3 versions before 22.3R3-S2, 22.4 versions before 22.4R3, 23.2 versions before 23.2R2. Junos OS Evolved: All versions before 21.2R3-S8-EVO, 21.4-EVO versions before 21.4R3-S5-EVO, 22.2-EVO versions before 22.2R3-S3-EVO, 22.3-EVO versions before 22.3R3-S2-EVO, 22.4-EVO versions before 22.4R3-EVO, 23.2-EVO versions before 23.2R2-EVO.

MEDIUM · CVSS 5.7 EPSS 0.00407
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-416Use After Free
CWE-416Use After Free
▤

Affected Products & Versions

4
juniper junos< 21.2
juniper junosall versions
juniper junos os evolved< 21.2
juniper junos os evolvedall versions
▣

Scoring & Timeline

5.7
MEDIUM · CVSS v3.1 · sirt@juniper.net
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD11 Jul 2024 · 04:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://supportportal.juniper.net/JSA82987Vendor Advisory
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