{"cve":"CVE-2023-22955","nvd":{"published":"2023-08-11T20:15:14.607","modified":"2026-06-17T05:36:30.607","status":"Analyzed","description":"An issue was discovered on AudioCodes VoIP desk phones through 3.4.4.1000. The validation of firmware images only consists of simple checksum checks for different firmware components. Thus, by knowing how to calculate and where to store the required checksums for the flasher tool, an attacker is able to store malicious firmware.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-345"],"references":["http://packetstormsecurity.com/files/174214/AudioCodes-VoIP-Phones-Insufficient-Firmware-Validation.html","http://seclists.org/fulldisclosure/2023/Aug/17","https://syss.de","https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2022-055.txt","http://packetstormsecurity.com/files/174214/AudioCodes-VoIP-Phones-Insufficient-Firmware-Validation.html"],"products":["audiocodes:405hd_firmware","audiocodes:445hd_firmware","audiocodes:c450hd_firmware"],"source":"nvd","synced_at":"2026-10-19T21:39:14.809778102+00:00"},"epss":{"cve":"CVE-2023-22955","score":0.00309,"percentile":0.23798,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}