9.8

CVE-2023-40266: mitel unify_openscape_xpressions_webassistant

Modified
Published 08-02-2024Last modified 15-05-2025

Vulnerability summary

CVE-2023-40266 is a critical (CVSS 9.8) vulnerability in mitel unify_openscape_xpressions_webassistant. EPSS estimates a 0.70% chance of exploitation in the next 30 days, higher than 53.3% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 9.8 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 1% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.70%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Timeline

  1. 08-02-2024
    PublishedVulnerability first disclosed.
  2. 15-05-2025
    Last modifiedVulnerability information updated.

Description

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

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.70%

Chance of exploitation in the next 30 days

Percentile

53%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.70% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Mitel1 product

1 vendor · 1 product

References

1 links