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CVE-2018-11543

23
FAUCET Score

CVE-2018-11543 is a Local File Inclusion (LFI) vulnerability in the web interface of Sonus SBC 1000, SBC 2000, and SBC SWe Lite devices, allowing unauthorized downloading of arbitrary files. It affects specific firmware builds across these product lines. Rated 7.5 HIGH on CVSS, this vulnerability is network-exploitable with low attack complexity and no user interaction, potentially leading to significant information disclosure. Despite its high severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or notable community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
6.0.0CPE matchmatch criteria
cpe:2.3:o:ribboncommunications:sonus_sbc_1000_firmware:6.0.0:*:*:*:*:*:*:*
6.1.0CPE matchmatch criteria
cpe:2.3:o:ribboncommunications:sonus_sbc_1000_firmware:6.1.0:*:*:*:*:*:*:*
7.0.0CPE matchmatch criteria
cpe:2.3:o:ribboncommunications:sonus_sbc_1000_firmware:7.0.0:*:*:*:*:*:*:*
6.0.0CPE matchmatch criteria
cpe:2.3:o:ribboncommunications:sonus_sbc_2000_firmware:6.0.0:*:*:*:*:*:*:*
6.1.0CPE matchmatch criteria
cpe:2.3:o:ribboncommunications:sonus_sbc_2000_firmware:6.1.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.61%
Probability of exploitation in next 30 days
EPSS Percentile
73.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0161 is in the 56th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

gist.github.com / CyberSKR/6914c2c2c8a550d6555137a3ff756df4
Third Party Advisory
support.sonus.net / display/UXDOC61/SBC+Edge+6.1.6+Release+Notes
Permissions RequiredThird Party Advisory