How severe is CVE-2023-25597?

CVE-2023-25597 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-25597 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-25597?

CVE-2023-25597 affects Mitel Micollab. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-25597?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-25597 published?

CVE-2023-25597 was published on 2023-04-14 and last updated on 2026-06-17.

CVE-2023-25597

CVE-2023-25597 is a medium-severity vulnerability in Mitel Micollab with a CVSS 3.x base score of 5.9. 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: Medium (CVSS 3.x base score 5.9)
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Mitel Micollab
Published: 2023-04-14
Last modified: 2026-06-17

Description

A vulnerability in the web conferencing component of Mitel MiCollab through 9.6.2.9 could allow an unauthenticated attacker to download a shared file via a crafted request - including the exact path and filename - due to improper authentication control. A successful exploit could allow access to sensitive information.

Frequently asked questions

What is CVE-2023-25597?: A vulnerability in the web conferencing component of Mitel MiCollab through 9.6.2.9 could allow an unauthenticated attacker to download a shared file via a crafted request - including the exact path and filename - due to improper authentication control. A successful exploit could allow access to sensitive information.
How severe is CVE-2023-25597?: CVE-2023-25597 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-25597 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-25597?: CVE-2023-25597 affects Mitel Micollab. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-25597?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-25597 published?: CVE-2023-25597 was published on 2023-04-14 and last updated on 2026-06-17.

References

https://www.mitel.com/support/security-advisories/mitel-product-security-advisory-23-0002

Affected products (1)

cpe:2.3:a:mitel:micollab:*:*:*:*:*:-:*:*

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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 →