CVE-2011-3481

CVE-2011-3481 is a medium-severity vulnerability in Cmu Cyrus Imap Server with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

The index_get_ids function in index.c in imapd in Cyrus IMAP Server before 2.4.11, when server-side threading is enabled, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted References header in an e-mail message.

Frequently asked questions

What is CVE-2011-3481?
The index_get_ids function in index.c in imapd in Cyrus IMAP Server before 2.4.11, when server-side threading is enabled, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted References header in an e-mail message.
How severe is CVE-2011-3481?
CVE-2011-3481 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2011-3481 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-3481?
CVE-2011-3481 primarily affects Cmu Cyrus Imap Server. In total, 40 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-3481?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-3481 published?
CVE-2011-3481 was published on 2011-09-14 and last updated on 2026-06-16.

References

Affected products (40)

More vulnerabilities in Cmu Cyrus Imap Server

All CVEs affecting Cmu Cyrus Imap Server →