CVE-2011-1174

CVE-2011-1174 is a medium-severity vulnerability in Digium Asterisk with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-399.

Key facts

Description

manager.c in Asterisk Open Source 1.6.1.x before 1.6.1.24, 1.6.2.x before 1.6.2.17.2, and 1.8.x before 1.8.3.2 allows remote attackers to cause a denial of service (CPU and memory consumption) via a series of manager sessions involving invalid data.

Frequently asked questions

What is CVE-2011-1174?
manager.c in Asterisk Open Source 1.6.1.x before 1.6.1.24, 1.6.2.x before 1.6.2.17.2, and 1.8.x before 1.8.3.2 allows remote attackers to cause a denial of service (CPU and memory consumption) via a series of manager sessions involving invalid data.
How severe is CVE-2011-1174?
CVE-2011-1174 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2011-1174 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-1174?
CVE-2011-1174 primarily affects Digium Asterisk. In total, 97 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-1174?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-1174 published?
CVE-2011-1174 was published on 2011-03-31 and last updated on 2026-06-16.

References

Affected products (97)

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