How severe is CVE-2015-6853?

CVE-2015-6853 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability high.

Is CVE-2015-6853 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-6853?

CVE-2015-6853 primarily affects Broadcom Single Sign-on. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-6853?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2015-6853 published?

CVE-2015-6853 was published on 2016-03-24 and last updated on 2026-06-17.

CVE-2015-6853

CVE-2015-6853 is a critical-severity vulnerability in Broadcom Single Sign-on with a CVSS 3.x base score of 9.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-345.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
CVSS v2: 6.4
EPSS exploit prediction: 2% (71st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-345
Affected product: Broadcom Single Sign-on
Published: 2016-03-24
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2015-6853?: 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.
How severe is CVE-2015-6853?: CVE-2015-6853 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability high.
Is CVE-2015-6853 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-6853?: CVE-2015-6853 primarily affects Broadcom Single Sign-on. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-6853?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2015-6853 published?: CVE-2015-6853 was published on 2016-03-24 and last updated on 2026-06-17.

References

Affected products (6)

cpe:2.3:a:broadcom:single_sign-on:r6.0:*:*:*:*:*:*:*
cpe:2.3:a:broadcom:single_sign-on:r12.0:*:*:*:*:*:*:*
cpe:2.3:a:broadcom:single_sign-on:r12.0j:*:*:*:*:*:*:*
cpe:2.3:a:broadcom:single_sign-on:r12.5:*:*:*:*:*:*:*
cpe:2.3:a:broadcom:single_sign-on:r12.51:*:*:*:*:*:*:*
cpe:2.3:a:broadcom:single_sign-on:r12.52:*:*:*:*:*:*:*

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