CVE-2015-6261

Cisco TelePresence Video Communication Server (VCS) Expressway X8.5.2 allows remote authenticated users to bypass intended access restrictions and read configuration files by leveraging the Mobile and Remote Access (MRA) role and establishing a TFTP session, aka Bug ID CSCuv78531.

Published: 2015-08-26 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2015-6261 is rated Moderate Risk (42.5/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.55%). EPSS rose +1.40% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2015-6261

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.15% 1.55% +1.40%
2 2025-06-14 0.09% 0.15% +0.06%
3 2023-03-07 — 0.09% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-6261

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.0 2.0 MEDIUM
AV:N/AC:L/Au:S/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 8.0 2.9 [email protected]

Weakness enumeration for CVE-2015-6261

Affected software / configurations for CVE-2015-6261

Vendor Product Version Raw CPE
cisco telepresence_video_communication_server_software x8.5.2 cpe:2.3:a:cisco:telepresence_video_communication_server_software:x8.5.2:*:*:*:expressway:*:*:*

References for CVE-2015-6261

cvelogic Threat Intelligence