THREATPORT/VULNERABILITY/CVE-2013-5756
MEDIUM SEVERITY

CVE-2013-5756

Sip T38g vulnerability

CVSS
4.0
EPSS
3.1%
EPSS pct
86th
Exploited
No known
Directory traversal vulnerability in Yealink VoIP Phone SIP-T38G allows remote authenticated users to read arbitrary files via a .. (dot dot) in the page parameter to cgi-bin/cgiServer.exx.
Affected vendor
Yealink
Affected product
Sip T38g
CVSS vector
AV:N/AC:L/Au:S/C:P/I:N/A:N
Weakness type (CWE)
Published
2014-08-03

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring single-factor authentication. Successful exploitation leads to partial impact to confidentiality.

Its EPSS score of 3.1% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 86% of all scored CVEs.

Check your external exposure to CVE-2013-5756

  • Confirm whether Yealink Sip T38g is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2013-5756.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2013-5756

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2013-5756 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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