Publication Date:
Last Update:
Current Version: V1.0
CVSS v3.1 Base Score: 5.9
CVSS v4.0 Base Score: 8.2
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Affected Product and Versions Remediation

All versions with Palo Alto Networks Virtual NGFW configured with support for the CHACHA20-POLY1305 algorithm or any Encrypt-then-MAC algorithms
affected by CVE-2023-48795
Contact customer support to receive patch and update information
  • CVE-2023-48795: Customers can resolve this issue by configuring the in-use SSH profile to contain at least one cipher and at least one MAC algorithm, which removes support for CHACHA20-POLY1305 and all Encrypt-then-MAC algorithms available (ciphers with -etm in the name) in PAN-OS software. See Palo Alto Networks' upstream documentation for additional guidance

Product-specific remediations or mitigations can be found in the section Affected Products and Solution.
Please follow the General Security Recommendations.

As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens' operational guidelines for Industrial Security (Download:, and to follow the recommendations in the product manuals. Additional information on Industrial Security by Siemens can be found at:

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This chapter describes all vulnerabilities (CVE-IDs) addressed in this security advisory. Wherever applicable, it also documents the product-specific impact of the individual vulnerabilities.

CVSS v3.1 Base Score 5.9
CVSS v3.1 Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N/E:P/RL:O/RC:C
CVSS v4.0 Base Score 8.2
CWE CWE-222: Truncation of Security-relevant Information

Customers are advised to consult and implement the workarounds provided in Palo Alto Networks' upstream security notifications [1]. PANW provides a public RSS feed for their security alerts to which customers can also subscribe [2].

V1.0 (2024-07-09): Publication Date