THREATPORT/VULNERABILITY/CVE-2014-2855
HIGH SEVERITY

CVE-2014-2855

Rsync vulnerability

CVSS
7.8
EPSS
4.1%
EPSS pct
90th
Exploited
No known
The check_secret function in authenticate.c in rsync 3.1.0 and earlier allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a user name which does not exist in the secrets file.
Affected vendor
Samba
Affected product
Rsync
CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:C
Weakness type (CWE)
  • CWE-20 — Improper Input Validation
Published
2014-04-23

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no authentication. Successful exploitation leads to complete impact to availability.

Its EPSS score of 4.1% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 90% of all scored CVEs.

Check your external exposure to CVE-2014-2855

  • Confirm whether Samba Rsync is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2014-2855.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2014-2855

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2014-2855 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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