CVE-2011-3200

CVE-2011-3200 is a medium-severity vulnerability in Rsyslog with a CVSS 2.0 base score of 5.0. Its EPSS exploit-prediction score of 21% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.

Key facts

Description

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.

Frequently asked questions

What is CVE-2011-3200?
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.
How severe is CVE-2011-3200?
CVE-2011-3200 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2011-3200 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 21% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-3200?
CVE-2011-3200 primarily affects Rsyslog. In total, 51 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-3200?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-3200 published?
CVE-2011-3200 was published on 2011-09-06 and last updated on 2026-06-16.

References

Affected products (51)

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