CVE-2026-61915Medium· 4.2▾ SunlitAn issue was discovered in Cyrus IMAP before 3.12.4. There is a VPATCH BYPARAM double-free. An authenticated calendar user could crash a Cyrus CalDAV worker with a PATCH containing PATCH-ACTION="BYPARAM@..." against a resource with two o…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 23.1 · likelihood 0.1 · exploitation 0
Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Sep 11.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.2%
Last analysed / modified upstream
0.2% → 0.3%
An issue was discovered in Cyrus IMAP before 3.12.4. There is a VPATCH BYPARAM double-free. An authenticated calendar user could crash a Cyrus CalDAV worker with a PATCH containing PATCH-ACTION="BYPARAM@..." against a resource with two or more properties of the matched kind. The memory holding the selector would be freed once on each iteration over the properties.
imap < 3.8.8imap >= 3.9.0, < 3.10.4imap >= 3.11.0, < 3.12.4Upgrade past the affected range:
imap 3.12.4Connected by shared product, vendor, weakness, or advisory.
CVE-2026-61909Low· 3.5An issue was discovered in Cyrus IMAP before 3.12.4
CVE-2026-61910Low· 3.5An issue was discovered in Cyrus IMAP before 3.12.4
CVE-2026-61908Low· 3.1An issue was discovered in Cyrus IMAP before 3.12.4
CVE-2026-61911Medium· 4.3An issue was discovered in Cyrus IMAP before 3.12.4
CVE-2026-87585High· 8.8Double free in PDFium in Google Chrome on on Windows prior to 153.0.8010.36 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted PDF file
CVE-2026-14164High· 7.5A double free issue has been identified in libarchive's RAR5 reader