Vulnerability · CVE-2025-34331
AudioCodes Fax Server and Auto-Attendant IVR appliances versions up to and including 2.6.23 contain an unauthenticated file read vulnerability via the download.php script.
Published Nov 19, 2025 · catalog updated Nov 20, 2025 · AudioCodes Limited AudioCodes Fax/IVR Appliance
Last checked Nov 1, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2025-34331. EPSS is 0.57%. Act only if a listed version of AudioCodes Limited AudioCodes Fax/IVR Appliance is installed.
Gaps on this record
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
Same product and reporting
- CVE-2025-34335 · High
- CVE-2025-34334 · High
- CVE-2025-34332 · High
- CVE-2025-34329 · Critical
- CVE-2025-34328 · Critical
- Severity
- High8.7
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.57%
- Remediation
- Vendor / distro source
- Affected products
- vendor AudioCodes Limited AudioCodes Fax/IVR Appliance 0 ≤2.6.23
AudioCodes Fax Server and Auto-Attendant IVR appliances versions up to and including 2.6.23 contain an unauthenticated file read vulnerability via the download.php script. The endpoint exposes a file download mechanism that lacks access control, allowing remote, unauthenticated users to request files stored on the appliance based solely on attacker-supplied path and filename parameters. While limited to specific file extensions permitted by the application logic, sensitive backup archives can be retrieved, exposing internal databases and credential hashes. Successful exploitation may lead to d
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- vendor AudioCodes Limited AudioCodes Fax/IVR Appliance 0 ≤2.6.230 ≤2.6.23
How to fix CVE-2025-34331
No stored fix
No vendor fix text is stored. Use the linked advisory before you change production.
Version check
Seen in 0 ≤2.6.23
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2025-34331. EPSS is 0.57%. Act only if a listed version of AudioCodes Limited AudioCodes Fax/IVR Appliance is installed.
Which versions are affected?
Compare what you have installed with AudioCodes Limited AudioCodes Fax/IVR Appliance 0 ≤2.6.23 0 ≤2.6.23. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS 0.57%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Nov 19, 2025 · EUVD
Detected
AudioCodes Fax Server and Auto-Attendant IVR appliances versions up to and including 2.6.23 contain an unauthenticated file read vulnerability via the download.php script. The endpoint exposes a file download mechanism that lacks access control, allowing remote, unauthenticated users to request files stored on the appliance based solely on attacker-supplied path and filename parameters. While limi
Nov 20, 2025 · EUVD
Updated
AudioCodes Fax Server and Auto-Attendant IVR appliances versions up to and including 2.6.23 contain an unauthenticated file read vulnerability via the download.php script. The endpoint exposes a file download mechanism that lacks access control, allowing remote, unauthenticated users to request files stored on the appliance based solely on attacker-supplied path and filename parameters. While limi
Sources
- CVE.orgVulnerability recordCVE-2025-34331
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2025-34331
30-day exploitation probability 0.57%
first.org - EUVDVulnerability recordEUVD-2025-198205
AudioCodes Fax Server and Auto-Attendant IVR appliances versions up to and including 2.6.23 contain an unauthenticated file read vulnerability via the download.php script. The endpoint exposes a file download mechanism that lacks access control, allowing remote, unauthenticated u
euvd.enisa.europa.eu
References
Freshness
Last verified in this catalog Nov 1, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- FIRST EPSSNov 1, 2026
- CVE.orgOct 28, 2026
- EUVDOct 28, 2026