THREATPORT/VULNERABILITY/CVE-2009-2544
MEDIUM SEVERITY

CVE-2009-2544

Messenger Plus\! Live vulnerability

CVSS
6.8
EPSS
3.4%
EPSS pct
88th
Exploited
No known
Directory traversal vulnerability in the Marcelo Costa FileServer component 1.0 for Microsoft Windows Live Messenger and Messenger Plus! Live (MPL) allows remote authenticated users to list arbitrary directories and read arbitrary files via a .. (dot dot) in a pathname.
Affected vendor
Microsoft
Affected product
Messenger Plus\! Live
CVSS vector
AV:N/AC:L/Au:S/C:C/I:N/A:N
Weakness type (CWE)
Published
2009-07-20

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 complete impact to confidentiality.

Its EPSS score of 3.4% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 88% of all scored CVEs.

Check your external exposure to CVE-2009-2544

  • Confirm whether Microsoft Messenger Plus\! Live is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2009-2544.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2009-2544

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2009-2544 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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Are you exposed to CVE-2009-2544?

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