What is CVE-2025-32105?

CVE-2025-32105 is a critical-severity vulnerability in Sangoma Img2020, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2025-06-03.

How severe is CVE-2025-32105?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Sangoma Img2020

CVE-2025-32105

A buffer overflow in the the Sangoma IMG2020 HTTP server through 2.3.9.6 allows an unauthenticated user to achieve remote code execution.

Vulnerability class: Buffer Overflow

Published 2025-06-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.012 (67.5th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 67th percentile — 67.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.012 · change: +0.001

Affected products

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

github.com/austin2111/papers/blob/main/Software_Vulnerabilities_in_Telecommunic… (Exploit, Third Party Advisory)
github.com/austin2111/papers/blob/main/CVE-2025-32105_CVE-2025-32106_Technical_…

Frequently asked questions

What is CVE-2025-32105?: CVE-2025-32105 is a critical-severity vulnerability in Sangoma Img2020, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2025-06-03.
How severe is CVE-2025-32105?: Critical severity. CVSS v3 base score is 9.8 out of 10.