How severe is CVE-2023-22964?

CVE-2023-22964 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2023-22964 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-22964?

CVE-2023-22964 primarily affects Zohocorp Manageengine Servicedesk Plus Msp. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-22964?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2023-22964 published?

CVE-2023-22964 was published on 2023-01-20 and last updated on 2026-06-17.

CVE-2023-22964

CVE-2023-22964 is a critical-severity vulnerability in Zohocorp Manageengine Servicedesk Plus Msp with a CVSS 3.x base score of 9.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
EPSS exploit prediction: 2% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Zohocorp Manageengine Servicedesk Plus Msp
Published: 2023-01-20
Last modified: 2026-06-17

Description

Zoho ManageEngine ServiceDesk Plus MSP before 10611, and 13x before 13004, is vulnerable to authentication bypass when LDAP authentication is enabled.

Frequently asked questions

What is CVE-2023-22964?: Zoho ManageEngine ServiceDesk Plus MSP before 10611, and 13x before 13004, is vulnerable to authentication bypass when LDAP authentication is enabled.
How severe is CVE-2023-22964?: CVE-2023-22964 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2023-22964 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-22964?: CVE-2023-22964 primarily affects Zohocorp Manageengine Servicedesk Plus Msp. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-22964?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2023-22964 published?: CVE-2023-22964 was published on 2023-01-20 and last updated on 2026-06-17.

References

Affected products (15)

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.6:10600:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.6:10601:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.6:10602:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.6:10603:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.6:10604:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.6:10605:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.6:10606:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.6:10607:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.6:10608:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.6:10609:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.6:10610:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:13.0:13000:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:13.0:13001:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:13.0:13002:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:13.0:13003:*:*:*:*:*:*

More vulnerabilities in Zohocorp Manageengine Servicedesk Plus Msp

CVE-2022-47966 — Critical (CVSS 9.8): Multiple Zoho ManageEngine on-premise products, such as ServiceDesk Plus through 14003, allow remote code execution due…
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CVE-2021-31531 — Critical (CVSS 9.8): Zoho ManageEngine ServiceDesk Plus MSP before 10521 is vulnerable to Server-Side Request Forgery (SSRF).
CVE-2022-40773 — High (CVSS 8.8): Zoho ManageEngine ServiceDesk Plus MSP before 10609 and SupportCenter Plus before 11025 are vulnerable to privilege…
CVE-2024-38869 — High (CVSS 8.3): Zohocorp ManageEngine Endpoint Central affected by Incorrect authorization vulnerability in remote office deploy…

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Other CWE-287 (Improper Authentication) vulnerabilities

CVE-2026-45480 — Critical (CVSS 10.0): Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-46389 — Critical (CVSS 10.0): UDS Identity Config builds the Keycloak configuration image (realm, plugins, theme, truststore, JARs) consumed by UDS…
CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

Browse all CWE-287 (Improper Authentication) vulnerabilities →