Integer overflow in the vclmi.dll module in OpenOffice.org (OOo) 3.3, 3.4 Beta, and possibly earlier, and LibreOffice before 3.5.3, allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a crafted embedded image object, as demonstrated by a JPEG image in a .DOC file, which triggers a heap-based buffer overflow.
Conclusion & alert: CVE-2012-1149 is rated High Risk (68.6/100): CVSS High severity, with high exploitation likelihood (EPSS 13.73%, 96th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +12.54% over the last day, indicating growing attacker interest. 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 | 2026-06-15 | 1.19% | 13.73% | +12.54% |
| 2 | 2025-12-14 | 3.76% | 1.19% | -2.57% |
| 3 | 2025-12-05 | — | 3.76% | — |
Full EPSS history (18 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2012-1149 not yet assigned priority: Debian including 1 source packages (libreoffice), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2012-1149 |
gentoo
|
normal | CVE-2012-1149: 2 GLSA(s) (201209-05, 201408-19), 4 atom(s) (app-office/libreoffice, app-office/libreoffice-bin, app-office/openoffice, app-office/openoffice-bin); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2012-1149 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2012-1149 |
ubuntu
|
medium | CVE-2012-1149 medium priority: Ubuntu including 2 source packages (libreoffice, openoffice.org), 12 status rows across 6 suites (hardy, lucid, natty, oneiric, precise, upstream): not-affected 4, released 4, DNE 2, ignored 1, needs-triage 1. | https://ubuntu.com/security/CVE-2012-1149 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| libreoffice | libreoffice | <= 3.5.2 | cpe:2.3:a:libreoffice:libreoffice:*:*:*:*:*:*:*:* |
| debian | debian_linux | 6.0 | cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:* |
| debian | debian_linux | 7.0 | cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux | 5.0 | cpe:2.3:o:redhat:enterprise_linux:5.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_desktop | 5.0 | cpe:2.3:o:redhat:enterprise_linux_desktop:5.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_desktop | 6.0 | cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server | 6.0 | cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_aus | 6.2 | cpe:2.3:o:redhat:enterprise_linux_server_aus:6.2:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_eus | 6.2.z | cpe:2.3:o:redhat:enterprise_linux_server_eus:6.2.z:*:*:*:*:*:*:* |
| redhat | enterprise_linux_workstation | 6.0 | cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* |
| apache | openoffice.org | 3.3.0 | cpe:2.3:a:apache:openoffice.org:3.3.0:*:*:*:*:*:*:* |
| apache | openoffice.org | 3.4 | cpe:2.3:a:apache:openoffice.org:3.4:beta:*:*:*:*:*:* |
| fedoraproject | fedora | 15 | cpe:2.3:o:fedoraproject:fedora:15:*:*:*:*:*:*:* |
| fedoraproject | fedora | 16 | cpe:2.3:o:fedoraproject:fedora:16:*:*:*:*:*:*:* |