How severe is CVE-2025-34332?

CVE-2025-34332 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-34332 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-34332?

CVE-2025-34332 primarily affects Audiocodes Fax Server. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-34332?

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

Does CVE-2025-34332 have an EU (EUVD) identifier?

Yes. CVE-2025-34332 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-198203.

When was CVE-2025-34332 published?

CVE-2025-34332 was published on 2025-11-19 and last updated on 2026-06-17.

CVE-2025-34332

CVE-2025-34332 is a high-severity vulnerability in Audiocodes Fax Server with a CVSS 3.x base score of 7.8. 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-276.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v4: 8.5
EPSS exploit prediction: 0% (8th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-198203
Weakness: CWE-276
Affected product: Audiocodes Fax Server
Published: 2025-11-19
Last modified: 2026-06-17

Description

AudioCodes Fax Server and Auto-Attendant IVR appliances versions up to and including 2.6.23 include a web administration component that controls back-end Windows services using helper batch scripts located under C:\\F2MAdmin\\F2E\\AudioCodes_files\\utils\\Services. When certain service actions are requested through ajaxPost.php, these scripts are invoked by PHP using system() under the NT AUTHORITY\\SYSTEM account. The batch files in this directory are writable by any authenticated local user due to overly permissive ACLs, allowing them to replace script contents with arbitrary commands. On the next service start/stop operation, the modified script is executed as SYSTEM, enabling elevation of local privileges.

Frequently asked questions

What is CVE-2025-34332?: AudioCodes Fax Server and Auto-Attendant IVR appliances versions up to and including 2.6.23 include a web administration component that controls back-end Windows services using helper batch scripts located under C:\\F2MAdmin\\F2E\\AudioCodes_files\\utils\\Services. When certain service actions are requested through ajaxPost.php, these scripts are invoked by PHP using system() under the NT AUTHORITY\\SYSTEM account. The batch files in this directory are writable by any authenticated local user due to overly permissive ACLs, allowing them to replace script contents with arbitrary commands. On the next service start/stop operation, the modified script is executed as SYSTEM, enabling elevation of local privileges.
How severe is CVE-2025-34332?: CVE-2025-34332 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-34332 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-34332?: CVE-2025-34332 primarily affects Audiocodes Fax Server. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-34332?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-34332 have an EU (EUVD) identifier?: Yes. CVE-2025-34332 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-198203.
When was CVE-2025-34332 published?: CVE-2025-34332 was published on 2025-11-19 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:audiocodes:fax_server:*:*:*:*:*:*:*:*
cpe:2.3:a:audiocodes:interactive_voice_response:*:*:*:*:*:*:*:*

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