---
cve: "CVE-2024-39552"
severity: "HIGH"
cvss: 8.7
epss: "59%"
vendor: "Juniper Networks"
kev: false
exploited: false
published: "2024-07-11 17:15:16"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-13T23:12:28+02:00"
---

# CVE-2024-39552

> 8.7 HIGH

## Beschreibung

An Improper Handling of Exceptional Conditions vulnerability in the routing protocol daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows a network based, unauthenticated attacker to cause the RPD process to crash leading to a Denial of Service (DoS).

When a malformed BGP UPDATE packet is received over an established BGP session, RPD crashes and restarts.

Continuous receipt of the malformed BGP UPDATE messages will create a sustained Denial of Service (DoS) condition for impacted devices.

This issue affects eBGP and iBGP, in both IPv4 and IPv6 implementations.  This issue requires a remote attacker to have at least one established BGP session.

This issue affects:
 
Juniper Networks Junos OS:
  *  All versions earlier than 20.4R3-S9;
  *  21.2 versions earlier than 21.2R3-S7;
  *  21.3 versions earlier than 21.3R3-S5;
  *  21.4 versions earlier than 21.4R3-S6;
  *  22.1 versions earlier than 22.1R3-S4;
  *  22.2 versions earlier than 22.2R3-S3;
  *  22.3 versions earlier than 22.3R3-S2;
  *  22.4 versions earlier than 22.4R3;
  *  23.2 versions earlier than 23.2R2.



Juniper Networks Junos OS Evolved:
  *  All versions earlier than 21.2R3-S7;
  *  21.3-EVO versions earlier than 21.3R3-S5;
  *  21.4-EVO versions earlier than 21.4R3-S8;
  *  22.1-EVO versions earlier than 22.1R3-S4;
  *  22.2-EVO versions earlier than 22.2R3-S3;
  *  22.3-EVO versions earlier than 22.3R3-S2;
  *  22.4-EVO versions earlier than 22.4R3;
  *  23.2-EVO versions earlier than 23.2R2.

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/R:A
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Referenzen

- <https://supportportal.juniper.net/JSA75726>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2024-39552) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_