Is CVE-2024-23463 in the CISA KEV catalog?

No. CVE-2024-23463 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-23463?

CVE-2024-23463 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2024-23463?

CVE-2024-23463 has an EPSS score of 0.37% (29th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-23463?

Upgrade client connector to 4.2.1 or later.

CVE & CISA-KEV Catalog

CVE-2024-23463

HIGH

8.8

CVSS v3

NVD

Description

Anti-tampering protection of the Zscaler Client Connector can be bypassed under certain conditions when running the Repair App functionality. This affects Zscaler Client Connector on Windows prior to 4.2.1

CWE-367TOCTOU Race Condition

How to fix

Remediation Available

client connectorNVD

Affected:< 4.2.1Fixed in:4.2.1CVE-2024-23463derived 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 RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.37%probability of exploitation in 30 days

29thpercentile

Low risk: more likely to be exploited than 29% of all known CVEs.

References

Vendor Advisory1

help.zscaler.com

Related Vulnerabilities

Other CWE-367 (TOCTOU Race Condition) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2022-36980	High	8.1	83%	-	Fix
CVE-2024-30088	High	7.0	68%	KEV + Ransom	Fix
CVE-2004-0594	Medium	5.1	55%	-	Fix
CVE-2024-50379	Critical	9.8	44%	-	Fix
CVE-2023-38146	High	8.8	39%	-	Fix
CVE-2024-0132	Critical	9.0	37%	-	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 2026-03-02.