CVE-2023-40266

CRITICALNVD 9.89.8—

9.8

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

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 48.3%
KEV: Not listed

Published

February 8, 2024

Last Modified

May 15, 2025

References (2)

cve@mitrehttps://networks.unify.com/security/advisories/OBSO-2305-03.pdf
af854a3a-2127-422b-91ae-364da2661108https://networks.unify.com/security/advisories/OBSO-2305-03.pdf

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-22Path Traversal

Data Freshness Timeline

(refreshed 12× in last 7d / 47× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

2026-06-15 17:47 UTCEPSS rescore
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2026-06-14 23:16 UTCEPSS rescore
2026-06-13 22:59 UTCEPSS rescore
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2026-06-10 22:17 UTCEPSS rescore
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2026-06-06 13:46 UTCEPSS rescore
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2026-06-05 22:46 UTCEPSS rescore
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2026-06-05 06:09 UTCEPSS rescore
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2026-06-04 13:11 UTCEPSS rescore
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2026-06-02 20:12 UTCEPSS rescore
2026-06-02 20:12 UTCEPSS rescore
2026-06-01 13:51 UTCEPSS rescore
2026-06-01 13:51 UTCEPSS rescore
2026-05-31 22:30 UTCEPSS rescore
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2026-05-31 00:15 UTCEPSS rescore
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2026-05-29 13:43 UTCEPSS rescore
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2026-05-28 13:44 UTCEPSS rescore
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2026-05-27 13:39 UTCEPSS rescore
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2026-05-26 13:43 UTCEPSS rescore
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2026-05-26 07:18 UTCEPSS rescore
2026-05-26 07:18 UTCEPSS rescore
2026-05-26 07:18 UTCEPSS rescore
2026-05-24 08:55 UTCEG score recompute
2026-05-24 08:55 UTCGHSA enrichment
2026-05-24 02:20 UTCOSV refresh

Frequently asked(5)

What is CVE-2023-40266?

CVE-2023-40266 is a critical vulnerability published on February 8, 2024. An issue was discovered in Atos Unify OpenScape Xpressions WebAssistant V7 before V7R1 FR5 HF42 P911. It allows path traversal.

When was CVE-2023-40266 disclosed?

CVE-2023-40266 was first published in the National Vulnerability Database on February 8, 2024, with the most recent update on May 15, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-40266 actively exploited?

CVE-2023-40266 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 48.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

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

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

How do I remediate CVE-2023-40266?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-40266, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2023-40266

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-40266?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (2)

Frequently asked(5)

Related CVEs(same CWE)