What is CVE-2023-36618?

CVE-2023-36618 is a high-severity vulnerability in Unify Session Border Controller, classified under OS Command Injection. CVSS score: 8.8/10. Published 2023-10-04.

How severe is CVE-2023-36618?

High severity. CVSS v3 base score is 8.8 out of 10.

RCE in Unify Session Border Controller

CVE-2023-36618

Atos Unify OpenScape Session Border Controller through V10 R3.01.03 allows execution of OS commands as root user by low-privileged authenticated users.

Vulnerability class: Command Injection (OS Command Injection)

Published 2023-10-04 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.038 (89.6th percentile), scored 2026-10-04.

Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 89.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.034 · newest: 0.038 · change: +0.004

Affected products

Unify Session Border Controller — versions 10_r3.01.03

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

sec-consult.com/vulnerability-lab/advisory/authenticated-remote-code-execution-… (Exploit, Third Party Advisory)
packetstormsecurity.com/files/174704/Atos-Unify-OpenScape-Code-Execution-Missin… (Exploit, VDB Entry, Third Party Advisory)
networks.unify.com/security/advisories/OBSO-2307-01.pdf (Vendor Advisory)

Frequently asked questions

What is CVE-2023-36618?: CVE-2023-36618 is a high-severity vulnerability in Unify Session Border Controller, classified under OS Command Injection. CVSS score: 8.8/10. Published 2023-10-04.
How severe is CVE-2023-36618?: High severity. CVSS v3 base score is 8.8 out of 10.