Is CVE-2023-44189 in the CISA KEV catalog?

No. CVE-2023-44189 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-44189?

CVE-2023-44189 has a CVSS v3 base score of 6.1 (MEDIUM).

What is the EPSS score for CVE-2023-44189?

CVE-2023-44189 has an EPSS score of 0.18% (8th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-44189?

Upgrade junos os evolved to 21.4 or later.

CVE & CISA-KEV Catalog

CVE-2023-44189

MEDIUM

6.1

CVSS v3

NVD

Description

An Origin Validation vulnerability in MAC address validation of Juniper Networks Junos OS Evolved on PTX10003 Series allows a network-adjacent attacker to bypass MAC address checking, allowing MAC addresses not intended to reach the adjacent LAN to be forwarded to the downstream network. Due to this issue, the router will start forwarding traffic if a valid route is present in forwarding-table, causing a loop and congestion in the downstream layer-2 domain connected to the device. This issue affects Juniper Networks Junos OS Evolved on PTX10003 Series: * All versions prior to 21.4R3-S4-EVO; * 22.1 versions prior to 22.1R3-S3-EVO; * 22.2 version 22.2R1-EVO and later versions; * 22.3 versions prior to 22.3R2-S2-EVO, 22.3R3-S1-EVO; * 22.4 versions prior to 22.4R2-S1-EVO, 22.4R3-EVO; * 23.2 versions prior to 23.2R2-EVO.

CWE-346

How to fix

Remediation Available

junos os evolvedNVD

Affected:< 21.4Fixed in:21.4CVE-2023-44189derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorAdjacent

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeChanged

Impact

ConfidentialityNone

IntegrityLow

AvailabilityLow

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L

Exploit Intelligence

0.18%probability of exploitation in 30 days

8thpercentile

Low risk: more likely to be exploited than 8% of all known CVEs.

References

Vendor Advisory1

supportportal.juniper.net

Related Vulnerabilities

Other CWE-346 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2009-1185	High	7.2	82%	-	Fix
CVE-2025-34291	High	8.8	79%	KEV	-
CVE-2020-16952	High	8.6	71%	-	-
CVE-2023-29711	Critical	9.8	70%	-	-
CVE-2015-4495	High	8.8	70%	KEV	Fix
CVE-2024-23898	High	8.8	67%	-	Fix

Embed a live status badge for CVE-2023-44189

Markdown

[![CVE-2023-44189](https://tridentstack.com/cve/badge/CVE-2023-44189.svg)](https://tridentstack.com/cve/CVE-2023-44189)

HTML

<a href="https://tridentstack.com/cve/CVE-2023-44189"><img src="https://tridentstack.com/cve/badge/CVE-2023-44189.svg" alt="CVE-2023-44189"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.