CVE-2016-1350

Cisco IOS 15.3 and 15.4, Cisco IOS XE 3.8 through 3.11, and Cisco Unified Communications Manager allow remote attackers to cause a denial of service (device reload) via malformed SIP messages, aka Bug ID CSCuj23293.

Published: 2016-03-26 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2016-1350 is rated Moderate Risk (62.1/100): CVSS High severity, with medium exploitation likelihood (EPSS 3.32%). EPSS rose +1.61% 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-2016-1350

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 1.71% 3.32% +1.61%
2 2026-05-21 2.44% 1.71% -0.73%
3 2025-07-12 — 2.44% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2016-1350

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]
7.8 2.0 HIGH
AV:N/AC:L/Au:N/C:N/I:N/A:C 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:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 6.9 [email protected]

Weakness enumeration for CVE-2016-1350

Affected software / configurations for CVE-2016-1350

Vendor Product Version Raw CPE
cisco ios_xe 3.8.0s cpe:2.3:o:cisco:ios_xe:3.8.0s:*:*:*:*:*:*:*
cisco ios_xe 3.8.1s cpe:2.3:o:cisco:ios_xe:3.8.1s:*:*:*:*:*:*:*
cisco ios_xe 3.8.2s cpe:2.3:o:cisco:ios_xe:3.8.2s:*:*:*:*:*:*:*
cisco ios_xe 3.9.0as cpe:2.3:o:cisco:ios_xe:3.9.0as:*:*:*:*:*:*:*
cisco ios_xe 3.9.0s cpe:2.3:o:cisco:ios_xe:3.9.0s:*:*:*:*:*:*:*
cisco ios_xe 3.9.1as cpe:2.3:o:cisco:ios_xe:3.9.1as:*:*:*:*:*:*:*
cisco ios_xe 3.9.1s cpe:2.3:o:cisco:ios_xe:3.9.1s:*:*:*:*:*:*:*
cisco ios_xe 3.9.2s cpe:2.3:o:cisco:ios_xe:3.9.2s:*:*:*:*:*:*:*
cisco ios_xe 3.10.0s cpe:2.3:o:cisco:ios_xe:3.10.0s:*:*:*:*:*:*:*
cisco ios_xe 3.10.1s cpe:2.3:o:cisco:ios_xe:3.10.1s:*:*:*:*:*:*:*
cisco ios_xe 3.10.1xbs cpe:2.3:o:cisco:ios_xe:3.10.1xbs:*:*:*:*:*:*:*
cisco ios_xe 3.10.2s cpe:2.3:o:cisco:ios_xe:3.10.2s:*:*:*:*:*:*:*
cisco ios_xe 3.11.0s cpe:2.3:o:cisco:ios_xe:3.11.0s:*:*:*:*:*:*:*
lenovo thinkcentre_e75s_firmware < m16kt61a cpe:2.3:o:lenovo:thinkcentre_e75s_firmware:*:*:*:*:*:*:*:*
samsung x14j_firmware t-ms14jakucb-1102.5 cpe:2.3:o:samsung:x14j_firmware:t-ms14jakucb-1102.5:*:*:*:*:*:*:*
sun opensolaris snv_124 cpe:2.3:o:sun:opensolaris:snv_124:*:sparc:*:*:*:*:*
zyxel gs1900-10hp_firmware < 2.50\(aazi.0\)c0 cpe:2.3:o:zyxel:gs1900-10hp_firmware:*:*:*:*:*:*:*:*
zzinc keymouse_firmware 3.08 cpe:2.3:o:zzinc:keymouse_firmware:3.08:*:*:*:*:windows:*:*

References for CVE-2016-1350

cvelogic Threat Intelligence