An issue was discovered in libac_des3.so on AudioCodes VoIP desk phones through 3.4.4.1000. Due to the use of hard-coded cryptographic key, an attacker with access to backup or configuration files is able to decrypt encrypted values and retrieve sensitive information, e.g., the device root password.
Conclusion & alert: CVE-2023-22957 is rated High Exploit Risk (65.9/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.38%). Core evidence: 3 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-05-06 | 0.30% | 0.38% | +0.08% |
| 2 | 2025-11-21 | 0.60% | 0.30% | -0.29% |
| 3 | 2025-11-18 | — | 0.60% | — |
Full EPSS history (12 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| audiocodes | c470hd_firmware | <= 3.4.4.1000 | cpe:2.3:o:audiocodes:c470hd_firmware:*:*:*:*:*:*:*:* |
| audiocodes | c455hd_firmware | <= 3.4.4.1000 | cpe:2.3:o:audiocodes:c455hd_firmware:*:*:*:*:*:*:*:* |
| audiocodes | c435hd_firmware | <= 3.4.4.1000 | cpe:2.3:o:audiocodes:c435hd_firmware:*:*:*:*:*:*:*:* |
| audiocodes | 445hd_firmware | <= 3.4.4.1000 | cpe:2.3:o:audiocodes:445hd_firmware:*:*:*:*:*:*:*:* |
| audiocodes | 405hd_firmware | <= 3.4.4.1000 | cpe:2.3:o:audiocodes:405hd_firmware:*:*:*:*:*:*:*:* |
| audiocodes | c450hd_firmware | <= 3.4.4.1000 | cpe:2.3:o:audiocodes:c450hd_firmware:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://packetstormsecurity.com/files/174215/AudioCodes-VoIP-Phones-Hardcoded-Key.html | Exploit Third Party Advisory VDB Entry |
| http://seclists.org/fulldisclosure/2023/Aug/15 | Exploit Mailing List Third Party Advisory |
| https://syss.de | Not Applicable |
| https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2022-052.txt | Exploit Vendor Advisory |