Is CVE-2015-6853 in the CISA KEV catalog?

No. CVE-2015-6853 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2015-6853?

CVE-2015-6853 has a CVSS v3 base score of 9.1 (CRITICAL).

What is the EPSS score for CVE-2015-6853?

CVE-2015-6853 has an EPSS score of 1.50% (71th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2015-6853?

No published fix for CVE-2015-6853 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2015-6853

CRITICALEPSS 71th pctl

9.1

CVSS v3

NVD

Description

The Domino web agent in CA Single Sign-On (aka SSO, formerly SiteMinder) R6, R12.0 before SP3 CR13, R12.0J before SP3 CR1.2, R12.5 before CR5, R12.51 before CR4, and R12.52 before SP1 CR3 allows remote attackers to cause a denial of service (daemon crash) or obtain sensitive information via a crafted request.

CWE-345

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityHigh

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Exploit Intelligence

1.50%probability of exploitation in 30 days

71stpercentile

Elevated risk: more likely to be exploited than 71% of all known CVEs.

References

Vendor Advisory1

ca.com

Other references1

securitytracker.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.