How severe is CVE-2015-0653?

CVE-2015-0653 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2015-0653 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-0653?

CVE-2015-0653 primarily affects Cisco Expressway Software. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-0653?

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-2015-0653 published?

CVE-2015-0653 was published on 2015-03-13 and last updated on 2026-06-17.

CVE-2015-0653

CVE-2015-0653 is a critical-severity vulnerability in Cisco Expressway Software with a CVSS 2.0 base score of 10.0. 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-287.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Cisco Expressway Software
Published: 2015-03-13
Last modified: 2026-06-17

Description

The management interface in Cisco TelePresence Video Communication Server (VCS) and Cisco Expressway before X7.2.4, X8 before X8.1.2, and X8.2 before X8.2.2 and Cisco TelePresence Conductor before X2.3.1 and XC2.4 before XC2.4.1 allows remote attackers to bypass authentication via crafted login parameters, aka Bug IDs CSCur02680 and CSCur05556.

Frequently asked questions

What is CVE-2015-0653?: The management interface in Cisco TelePresence Video Communication Server (VCS) and Cisco Expressway before X7.2.4, X8 before X8.1.2, and X8.2 before X8.2.2 and Cisco TelePresence Conductor before X2.3.1 and XC2.4 before XC2.4.1 allows remote attackers to bypass authentication via crafted login parameters, aka Bug IDs CSCur02680 and CSCur05556.
How severe is CVE-2015-0653?: CVE-2015-0653 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2015-0653 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-0653?: CVE-2015-0653 primarily affects Cisco Expressway Software. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-0653?: 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-2015-0653 published?: CVE-2015-0653 was published on 2015-03-13 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:cisco:expressway_software:*:*:*:*:*:*:*:*
cpe:2.3:a:cisco:telepresence_conductor:*:*:*:*:*:*:*:*
cpe:2.3:a:cisco:telepresence_video_communication_server_software:*:*:*:*:*:*:*:*

More vulnerabilities in Cisco Expressway Software

CVE-2015-0652 — High (CVSS 7.8): The Session Description Protocol (SDP) implementation in Cisco TelePresence Video Communication Server (VCS) and Cisco…
CVE-2014-3368 — High (CVSS 7.8): Cisco TelePresence Video Communication Server (VCS) and Expressway Software before X8.2 allow remote attackers to cause…
CVE-2014-3370 — High (CVSS 7.1): Cisco TelePresence Video Communication Server (VCS) and Expressway Software before X8.1.1 allow remote attackers to…
CVE-2014-3369 — High (CVSS 7.1): The SIP IX implementation in Cisco TelePresence Video Communication Server (VCS) and Expressway Software before X8.1.1…

All CVEs affecting Cisco Expressway Software →

Other CWE-287 (Improper Authentication) vulnerabilities

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CVE-2026-59500 — Critical (CVSS 10.0): CWE-287: Improper Authentication
CVE-2024-27253 — Critical (CVSS 10.0): IBM DOORS Next 7.0.3 through 7.0.3 Interim Fix 018 could allow an authenticated user to bypass security logic to…
CVE-2026-56162 — Critical (CVSS 10.0): Improper authentication in Azure SQL Database allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-62825 — Critical (CVSS 10.0): Improper authentication in Azure Key Vault allows an unauthorized attacker to elevate privileges over a network.

Browse all CWE-287 (Improper Authentication) vulnerabilities →