Is CVE-2023-1697 actively exploited?

No active exploitation of CVE-2023-1697 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-1697 be exploited remotely?

Partially. CVE-2023-1697 requires adjacent network access (same network segment) to exploit.

What is the CVSS score of CVE-2023-1697?

CVE-2023-1697 has a CVSS score of 6.5 (MEDIUM).

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MEDIUM

CVE-2023-1697

CWE-230Published: April 17, 2023· Updated: Jun 17, 2026

6.5

CVSS v3.1

Official Description

An Improper Handling of Missing Values vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows an adjacent, unauthenticated attacker to cause a dcpfe process core and thereby a Denial of Service (DoS). Continued receipt of these specific frames will cause a sustained Denial of Service condition. This issue occurs when a specific malformed ethernet frame is received. This issue affects Juniper Networks Junos OS on QFX10000 Series, PTX1000 Series Series: All versions prior to 19.4R3-S10; 20.1 version 20.1R1 and later versions; 20.2 versions prior to 20.2R3-S6; 20.3 versions prior to 20.3R3-S6; 20.4 versions prior to 20.4R3-S5; 21.1 versions prior to 21.1R3-S4; 21.2 versions prior to 21.2R3-S3; 21.3 versions prior to 21.3R3-S3; 21.4 versions prior to 21.4R3-S1; 22.1 versions prior to 22.1R2-S1, 22.1R3; 22.2 versions prior to 22.2R1-S2, 22.2R2.

NVD Source

Technical Analysis

CVE-2023-1697 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 6.5.