What is CVE-2023-41591?

CVE-2023-41591 is a critical-severity vulnerability in Opennetworking Onos, classified under Authentication Bypass by Spoofing. CVSS score: 9.8/10. Published 2025-05-29.

How severe is CVE-2023-41591?

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

Vulnerability in Opennetworking Onos

CVE-2023-41591

An issue in Open Network Foundation ONOS v2.7.0 allows attackers to create fake IP/MAC addresses and potentially execute a man-in-the-middle attack on communications between fake and real hosts.

Published 2025-05-29 · 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: 0.004 (31.2th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 31.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Opennetworking Onos — versions 2.7.0

Weakness classification (CWE)

CWE-290 — Authentication Bypass by Spoofing

References

wiki.onosproject.org/pages/viewpage.action (Product)
gist.github.com/kjw6855/9764e3f51b89119473e4d2c4f64dca27 (Third Party Advisory)

Frequently asked questions

What is CVE-2023-41591?: CVE-2023-41591 is a critical-severity vulnerability in Opennetworking Onos, classified under Authentication Bypass by Spoofing. CVSS score: 9.8/10. Published 2025-05-29.
How severe is CVE-2023-41591?: Critical severity. CVSS v3 base score is 9.8 out of 10.