CVE-2017-3808

highpriority · track · 31EPSS 0.025 · 84 %ileEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

2.48% (84th) EPSS

CVSS 7.8 · high

Is it mine?

25 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

A vulnerability in the Session Initiation Protocol (SIP) UDP throttling process of Cisco Unified Communications Manager (Cisco Unified CM) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient rate limiting protection. An attacker could exploit this vulnerability by sending the affected device a high rate of SIP messages. An exploit could allow the attacker to cause the device to reload unexpectedly. The device and services will restart automatically. This vulnerability affects Cisco Unified Communications Manager (CallManager) releases prior to the first fixed release; the following list indicates the first minor release that includes the fix for this vulnerability: 10.5.2.14900-16 11.0.1.23900-5 11.5.1.12900-2. Cisco Bug IDs: CSCuz72455.

cvss

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

7.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.8

v2.07.8highAV:N/AC:L/Au:N/C:N/I:N/A:Cprimary · NVD / NIST USexploitability 10 · impact 6.9

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v2.07.8highAV:N/AC:L/Au:N/C:N/I:N/A:Csecondary · FSTEC (BDU) RU

v3.06.9mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-119USprimaryCWE-119US

affected products (25)

Products and version ranges known to be affected.

n/a Cisco Unified Communications Manager≤ Cisco Unified Communications Managerenisa_euvdEU
Cisco Systems Inc. Unified Communications Manager≤ 10.5fstec_bduRU
Cisco Systems Inc. Unified Communications Manager≤ 10.0fstec_bduRU
Cisco Systems Inc. Unified Communications Manager≤ 11.5fstec_bduRU
Cisco Systems Inc. Unified Communications Manager≤ 11.0fstec_bduRU
cisco unified communications manager= 10.0(1.10000.12)nvdUScpe:2.3:a:cisco:unified_communications_manager:*:*:*:*:*:*:*:*
cisco unified communications manager= 10.0_basenvdUScpe:2.3:a:cisco:unified_communications_manager:*:*:*:*:*:*:*:*
cisco unified communications manager= 10.5(0.98000.88)nvdUScpe:2.3:a:cisco:unified_communications_manager:*:*:*:*:*:*:*:*
cisco unified communications manager= 10.5(1.98991.13)nvdUScpe:2.3:a:cisco:unified_communications_manager:*:*:*:*:*:*:*:*
cisco unified communications manager= 10.5(1.99995.9)nvdUScpe:2.3:a:cisco:unified_communications_manager:*:*:*:*:*:*:*:*
cisco unified communications manager= 10.5(2.10000.5)nvdUScpe:2.3:a:cisco:unified_communications_manager:*:*:*:*:*:*:*:*
cisco unified communications manager= 10.5(2.12901.1)nvdUScpe:2.3:a:cisco:unified_communications_manager:*:*:*:*:*:*:*:*
cisco unified communications manager= 10.5(2.13900.9)nvdUScpe:2.3:a:cisco:unified_communications_manager:*:*:*:*:*:*:*:*
cisco unified communications manager= 10.5(3.10000.9)nvdUScpe:2.3:a:cisco:unified_communications_manager:*:*:*:*:*:*:*:*
cisco unified communications manager= 10.5_basenvdUScpe:2.3:a:cisco:unified_communications_manager:*:*:*:*:*:*:*:*
cisco unified communications manager= 11.0(0.98000.225)nvdUScpe:2.3:a:cisco:unified_communications_manager:*:*:*:*:*:*:*:*
cisco unified communications manager= 11.0(1.10000.10)nvdUScpe:2.3:a:cisco:unified_communications_manager:*:*:*:*:*:*:*:*
cisco unified communications manager= 11.5(0.98000.480)nvdUScpe:2.3:a:cisco:unified_communications_manager:*:*:*:*:*:*:*:*
cisco unified communications manager= 11.5(0.98000.486)nvdUScpe:2.3:a:cisco:unified_communications_manager:*:*:*:*:*:*:*:*
cisco unified communications manager= 11.5(0.99838.4)nvdUScpe:2.3:a:cisco:unified_communications_manager:*:*:*:*:*:*:*:*

showing 20 of 25

also known as (5)

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 2017-04-20modified 2026-06-17

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references (8)

External citations — patches, advisories, analysis.

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