Is CVE-2023-40266 in the CISA KEV catalog?

No. CVE-2023-40266 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-40266?

CVE-2023-40266 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2023-40266?

CVE-2023-40266 has an EPSS score of 0.70% (49th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-40266?

Upgrade unify openscape xpressions webassistant to 7r1_fr5_hf42_p911 or later.

CVE & CISA-KEV Catalog

CVE-2023-40266

CRITICAL

9.8

CVSS v3

NVD

Description

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

CWE-22Path Traversal

How to fix

Remediation Available

unify openscape xpressions webassistantNVD

Affected:>= 7.0, < 7r1_fr5_hf42_p911Fixed in:7r1_fr5_hf42_p911CVE-2023-40266derived 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 VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.70%probability of exploitation in 30 days

49thpercentile

Moderate risk: more likely to be exploited than 49% of all known CVEs.

References

Vendor Advisory1

networks.unify.com

Related Vulnerabilities

Other CWE-22 (Path Traversal) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-23897	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2023-32315	High	8.6	100%	KEV	Fix
CVE-2022-29464	Critical	9.8	100%	KEV + Ransom	-
CVE-2021-26086	Medium	5.3	100%	KEV	Fix
CVE-2021-22005	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2020-5902	Critical	9.8	100%	KEV + Ransom	Fix

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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 2025-05-15.