CVE-2023-40266

Name: CVE-2023-40266
Creator: NVD / NIST
Published: 2024-02-08T22:15:08.84+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.70%

Last modified Jun 17, 2026

CVE-2023-40266 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An issue was discovered in Atos Unify OpenScape Xpressions WebAssistant V7 before V7R1 FR5 HF42 P911. It allows path traversal.. EPSS estimates a 0.70% chance of exploitation in the next 30 days.

Description

An issue was discovered in Atos Unify OpenScape Xpressions WebAssistant V7 before V7R1 FR5 HF42 P911. It allows path traversal.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

0.70%

48.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Mitel	Unify Openscape Xpressions Webassistant	>= 7.0, < 7r1_fr5_hf42_p911

References

https://networks.unify.com/security/advisories/OBSO-2305-03.pdfVendor Advisory
https://networks.unify.com/security/advisories/OBSO-2305-03.pdfVendor Advisory

Timeline

Published: Feb 8, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-40266?

An issue was discovered in Atos Unify OpenScape Xpressions WebAssistant V7 before V7R1 FR5 HF42 P911. It allows path traversal.

How severe is CVE-2023-40266?

CVE-2023-40266 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.70% probability of exploitation in the next 30 days.

How do I fix CVE-2023-40266?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-40266?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST