What is CVE-2015-1778?

CVE-2015-1778 is a critical-severity vulnerability in Opendaylight, classified under Improper Authentication. CVSS score: 9.8/10. Published 2017-06-27.

How severe is CVE-2015-1778?

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

Auth bypass in Opendaylight

CVE-2015-1778

The custom authentication realm used by karaf-tomcat's "opendaylight" realm in Opendaylight before Helium SR3 will authenticate any username and password combination.

Vulnerability class: Broken Authentication

Published 2017-06-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.027 (85.6th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 85.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.027 · newest: 0.027 · change: 0.000

Affected products

Opendaylight

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

www.openwall.com/lists/oss-security/2015/03/20/3 (mailing-list, Mailing List, VDB Entry)
www.securityfocus.com/bid/73255 (VDB Entry, Third Party Advisory, vdb-entry)
wiki.opendaylight.org/view/Security_Advisories (Patch, Vendor Advisory)
cloudrouter.org/security/ (Third Party Advisory)

Frequently asked questions

What is CVE-2015-1778?: CVE-2015-1778 is a critical-severity vulnerability in Opendaylight, classified under Improper Authentication. CVSS score: 9.8/10. Published 2017-06-27.
How severe is CVE-2015-1778?: Critical severity. CVSS v3 base score is 9.8 out of 10.