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CVE-2025-34331

25
FAUCET Score

CVE-2025-34331 is an unauthenticated file read vulnerability affecting AudioCodes Fax Server and Auto-Attendant IVR appliances up to version 2.6.23. The flaw in the download.php script allows remote, unauthenticated attackers to retrieve sensitive backup archives containing internal databases and credential hashes due to a lack of access control. With a CVSS score of 7.5 (HIGH), this vulnerability has a low attack complexity and can lead to significant disclosure of administrative password hashes and configuration data. Currently, there is no public exploit code (Metasploit, Nuclei, ExploitDB) available, and it is not listed in CISA's KEV catalog, nor is there any significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.6.23CPE matchmatch criteria
cpe:2.3:a:audiocodes:fax_server:*:*:*:*:*:*:*:*
<= 2.6.23CPE matchmatch criteria
cpe:2.3:a:audiocodes:interactive_voice_response:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

8.7HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
HIGH
VS Integrity
NONE
VS Availability
NONE
SS Confidentiality
LOW
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.52%
Probability of exploitation in next 30 days
EPSS Percentile
40.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0052 is in the 19th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

pierrekim.github.io / advisories/2025-audiocodes-fax-ivr.txt
ExploitThird Party Advisory
pierrekim.github.io / blog/2025-11-20-audiocodes-fax-ivr-8-vulnerabilities.html
ExploitThird Party Advisory
audiocodes.com / media/g1in2u2o/0548-product-notice-end-of-service-for-audiocodes-auto-attendant-ivr-solution.pdf
Product
vulncheck.com / advisories/audiocodes-fax-ivr-appliance-unauthenticated-file-read-via-download
Third Party Advisory