CVE detail

CVE-2023-36848 — CVE-2023-36848

Published 2023-07-14 · Modified 2026-06-17 · Vendor juniper · Product junos · Source nvd
MEDIUM
severity
CVSS-derived band
6.5
CVSS v3
0–10 scale
0.0030
EPSS probability
exploitation probability, 30d
23.0%
EPSS percentile
percentile vs all CVEs
NOT LISTED
CISA KEV
known exploited catalog

Description

An Improper Handling of Undefined Values vulnerability in the periodic packet management daemon (PPMD) of Juniper Networks Junos OS on MX Series(except MPC10, MPC11 and LC9600) allows an unauthenticated adjacent attacker to cause a Denial of Service (DoS). When a malformed CFM packet is received, it leads to an FPC crash. Continued receipt of these packets causes a sustained denial of service. This vulnerability occurs only when CFM has been configured on the interface. This issue affects Juniper Networks Junos OS: versions prior to 19.1R3-S10 on MX Series; 19.2 versions prior to 19.2R3-S7 on MX Series; 19.3 versions prior to 19.3R3-S8 on MX Series; 19.4 versions prior to 19.4R3-S12 on MX Series; 20.1 version 20.1R1 and later versions on MX Series; 20.2 versions prior to 20.2R3-S8 on MX

Remediation

vendor remediation guidance

The following software releases have been updated to resolve this specific issue: Junos OS 19.1R3-S10, 19.2R3-S7, 19.3R3-S8, 19.4R3-S12, 20.2R3-S8, 20.4R3-S7, 21.1R3-S5, 21.2R3-S5, 21.3R3-S4, 21.4R3-S4, 22.1R3-S3, 22.2R3-S1, 22.3R3, 22.4R1-S2, 22.4R2, 23.1R1, and all subsequent releases.

workarounds

There are no known workarounds for this issue.

ProductVulnerable rangeFixed versionAdvisory
Juniper Networks Junos OS>=unspecified<19.1R3-S1019.1R3-S10advisory ↗
Juniper Networks Junos OS>=19.2<19.2R3-S719.2R3-S7advisory ↗
Juniper Networks Junos OS>=19.3<19.3R3-S819.3R3-S8advisory ↗
Juniper Networks Junos OS>=19.4<19.4R3-S1219.4R3-S12advisory ↗
Juniper Networks Junos OS>=20.1<20.1*20.1*advisory ↗
Juniper Networks Junos OS>=20.2<20.2R3-S820.2R3-S8advisory ↗
Juniper Networks Junos OS>=20.3<20.3*20.3*advisory ↗
Juniper Networks Junos OS>=20.4<20.4R3-S720.4R3-S7advisory ↗
Juniper Networks Junos OS>=21.1<21.1R3-S521.1R3-S5advisory ↗
Juniper Networks Junos OS>=21.2<21.2R3-S521.2R3-S5advisory ↗
Juniper Networks Junos OS>=21.3<21.3R3-S421.3R3-S4advisory ↗
Juniper Networks Junos OS>=21.4<21.4R3-S421.4R3-S4advisory ↗
Juniper Networks Junos OS>=22.1<22.1R3-S322.1R3-S3advisory ↗
Juniper Networks Junos OS>=22.2<22.2R3-S122.2R3-S1advisory ↗
Juniper Networks Junos OS>=22.3<22.3R322.3R3advisory ↗
Juniper Networks Junos OS>=22.4<22.4R1-S2, 22.4R222.4R1-S2, 22.4R2advisory ↗

References

cvedb.io · NVD · CISA KEV · FIRST EPSS · vendor advisories (CVE Program List v5). Informational only, no warranty — verify every remediation against the vendor advisory before acting on it. This product uses data from the NVD API but is not endorsed or certified by the NVD, CISA, FIRST.org or any vendor named. CVE® is a registered trademark of The MITRE Corporation.