CVE-2018-11541

A root privilege escalation vulnerability in the Sonus SBC 1000 / SBC 2000 / SBC SWe Lite web interface allows unauthorised access to privileged content via an unspecified vector. It affects the 1000 and 2000 devices 6.0.x up to Build 446, 6.1.x up to Build 492, and 7.0.x up to Build 485. It affects the SWe Lite devices 6.1.x up to Build 111 and 7.0.x up to Build 140.

Published: 2018-07-09 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-11541 is rated High Risk (66.9/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 1.75%). EPSS rose +1.45% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize 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-2018-11541

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 0.30% 1.75% +1.45%
2 2025-03-30 0.37% 0.30% -0.07%
3 2025-03-29 — 0.37% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-11541

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.0 CRITICAL
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]
10.0 2.0 HIGH
AV:N/AC:L/Au:N/C:C/I:C/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:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 10.0 [email protected]

Weakness enumeration for CVE-2018-11541

Affected software / configurations for CVE-2018-11541

Vendor Product Version Raw CPE
ribboncommunications sonus_sbc_1000_firmware 6.0.0 cpe:2.3:o:ribboncommunications:sonus_sbc_1000_firmware:6.0.0:*:*:*:*:*:*:*
ribboncommunications sonus_sbc_1000_firmware 6.1.0 cpe:2.3:o:ribboncommunications:sonus_sbc_1000_firmware:6.1.0:*:*:*:*:*:*:*
ribboncommunications sonus_sbc_1000_firmware 7.0.0 cpe:2.3:o:ribboncommunications:sonus_sbc_1000_firmware:7.0.0:*:*:*:*:*:*:*
ribboncommunications sonus_sbc_2000_firmware 6.0.0 cpe:2.3:o:ribboncommunications:sonus_sbc_2000_firmware:6.0.0:*:*:*:*:*:*:*
ribboncommunications sonus_sbc_2000_firmware 6.1.0 cpe:2.3:o:ribboncommunications:sonus_sbc_2000_firmware:6.1.0:*:*:*:*:*:*:*
ribboncommunications sonus_sbc_2000_firmware 7.0.0 cpe:2.3:o:ribboncommunications:sonus_sbc_2000_firmware:7.0.0:*:*:*:*:*:*:*
ribboncommunications sbc_swe_lite_web 6.1.0 cpe:2.3:a:ribboncommunications:sbc_swe_lite_web:6.1.0:*:*:*:*:*:*:*
ribboncommunications sbc_swe_lite_web 7.0.0 cpe:2.3:a:ribboncommunications:sbc_swe_lite_web:7.0.0:*:*:*:*:*:*:*

References for CVE-2018-11541

cvelogic Threat Intelligence