THREATPORT/VULNERABILITY/CVE-2011-3200
MEDIUM SEVERITY

CVE-2011-3200

Rsyslog vulnerability

CVSS
5.0
EPSS
20.8%
EPSS pct
97th
Exploited
No known
Stack-based buffer overflow in the parseLegacySyslogMsg function in tools/syslogd.c in rsyslogd in rsyslog 4.6.x before 4.6.8 and 5.2.0 through 5.8.4 might allow remote attackers to cause a denial of service (application exit) via a long TAG in a legacy syslog message.
Affected vendor
Rsyslog
Affected product
Rsyslog
CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness type (CWE)
  • CWE-119 — Improper Restriction of Operations within Memory Bounds
Published
2011-09-06

Risk analysis

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

Its EPSS score of 20.8% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2011-3200

  • Confirm whether Rsyslog Rsyslog is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2011-3200.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2011-3200

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2011-3200 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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