CVE-2015-4316

mediumpriority · track · 23EPSS 0.019 · 79 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.89% (79th) EPSS

CVSS 5.5 · medium

Is it mine?

3 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

The Mobile and Remote Access (MRA) endpoint-validation feature in Cisco TelePresence Video Communication Server (VCS) Expressway X8.5.2 improperly validates the phone line used for registration, which allows remote authenticated users to conduct impersonation attacks via a crafted registration, aka Bug ID CSCuv40396.

cvss

Technical severity, 0–10. One row per scoring source.

5.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.05.5mediumAV:N/AC:L/Au:S/C:P/I:N/A:Pprimary · NVD / NIST USexploitability 8 · impact 4.9

v2.05.5mediumAV:N/AC:L/Au:S/C:P/I:N/A:Psecondary · FSTEC (BDU) RU

v2.04.7mediumAV:N/AC:L/Au:S/C:P/I:N/A:P/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USprimaryCWE-20US

affected products (3)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
Cisco Systems Inc. TelePresence Video Communication Server≤ x8.5.2 Expresswayfstec_bduRU
cisco telepresence video communication server software= x8.5.2nvdUScpe:2.3:a:cisco:telepresence_video_communication_server_software:*:*:*:*:*:*:*:*

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2015-08-20modified 2026-06-17

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+25171 more

references (9)

External citations — patches, advisories, analysis.

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