Integer overflow in the index_urlfetch function in imap/index.c in Cyrus IMAP 2.3.19, 2.4.18, and 2.5.6 allows remote attackers to have unspecified impact via vectors related to urlfetch range checks and the start_octet variable. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-8076.
CVSS Details
- CVSS 3.1 Base Score: 7.3
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Freebsd | — | Upgrade cyrus-imapd24Upgrade cyrus-imapd25 | Dec 10, 2025 | Dec 1, 2015 |
| Suse | — | Upgrade perl-Cyrus-SIEVE-managesieveUpgrade perl-Cyrus-IMAPUpgrade cyrus-imapdUpgrade cyrus-imapd-devel | Dec 18, 2015 | Dec 3, 2015 |
| Ubuntu | — | No solution exists | Jun 26, 2025 | Dec 3, 2015 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub