Heap-based buffer overflow in Evolution 2.22.1 allows user-assisted remote attackers to execute arbitrary code via a long DESCRIPTION property in an iCalendar attachment, which is not properly handled during a reply in the calendar view (aka the Calendars window).
Conclusion & alert: CVE-2008-1109 is rated High Risk (66.8/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 4.24%). Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2025-07-25 | 5.52% | 4.24% | -1.29% |
| 2 | 2025-03-30 | 8.94% | 5.52% | -3.42% |
| 3 | 2025-03-29 | — | 8.94% | — |
Full EPSS history (10 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.3 | 2.0 | HIGH |
|
8.6 | 10.0 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
low | CVE-2008-1109 low priority: Debian including 1 source packages (evolution), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2008-1109 |
gentoo
|
normal | CVE-2008-1109: 1 GLSA(s) (200806-06), 1 atom(s) (mail-client/evolution); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2008-1109 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2008-1109 |
ubuntu
|
high | CVE-2008-1109 high priority: Ubuntu including 1 source packages (evolution), 5 status rows across 5 suites (dapper, feisty, gutsy, hardy, upstream): released 4, needs-triage 1. | https://ubuntu.com/security/CVE-2008-1109 |