Heap-based buffer overflow in the read function in filters/words/msword-odf/wv2/src/styles.cpp in the Microsoft import filter in Calligra 2.4.3 and earlier allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a crafted ODF style in an ODF document. NOTE: this is the same vulnerability as CVE-2012-3455, but it was SPLIT by the CNA even though Calligra and KOffice share the same codebase.
结论预警: CVE-2012-3456 综合评估为高可利用风险（74/100）：CVSS 技术影响为高级，利用概率偏高（EPSS 20.07%，百分位 97%） 核心证据: 已收录 2 条公开利用参考（Exploit-DB）。 强制指令: 存在公开利用—请排查暴露面、落实缓解措施并优先修补。
风险随态势动态变化；本站持续评估并同步更新本页展示内容。
| EDB-ID | 来源 | 类型 | 公开时间 | 链接 |
|---|---|---|---|---|
| 37576 | exploit_db | edb | 2012-08-07 | Exploit-DB ↗ |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS 日更估计相对被利用可能性；百分位表示该 CVE 在已评分漏洞中的相对排名（越高表示相对更严重）。
| # | 日期 | 旧 EPSS 分数 | 新 EPSS 分数 | 变化（新 − 旧） |
|---|---|---|---|---|
| 1 | 2026-06-15 | 42.17% | 20.07% | -22.10% |
| 2 | 2026-04-21 | 46.51% | 42.17% | -4.33% |
| 3 | 2025-03-30 | — | 46.51% | — |
完整 EPSS 历史 （共 18 条）
该 CVE 的 CVSS 指标。
| 底座分 | 版本 | 严重度 | 向量 | 可利用性 | 影响 | 分数来源 |
|---|---|---|---|---|---|---|
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2012-3456 not yet assigned priority: Debian including 1 source packages (calligra), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2012-3456 |
gentoo
|
normal | CVE-2012-3456: 1 GLSA(s) (201209-10), 1 atom(s) (app-office/calligra); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2012-3456 |
ubuntu
|
medium | CVE-2012-3456 medium priority: Ubuntu including 1 source packages (calligra), 6 status rows across 6 suites (hardy, lucid, natty, oneiric, precise, upstream): DNE 4, needs-triage 1, released 1. | https://ubuntu.com/security/CVE-2012-3456 |
| 厂商 | 产品 | 版本 | 原始 CPE |
|---|---|---|---|
| calligra | calligra | <= 2.4.3 | cpe:2.3:a:calligra:calligra:*:*:*:*:*:*:*:* |
| calligra | calligra | 2.4 | cpe:2.3:a:calligra:calligra:2.4:*:*:*:*:*:*:* |
| calligra | calligra | 2.4 | cpe:2.3:a:calligra:calligra:2.4:beta2:*:*:*:*:*:* |
| calligra | calligra | 2.4 | cpe:2.3:a:calligra:calligra:2.4:beta3:*:*:*:*:*:* |
| calligra | calligra | 2.4 | cpe:2.3:a:calligra:calligra:2.4:beta4:*:*:*:*:*:* |
| calligra | calligra | 2.4 | cpe:2.3:a:calligra:calligra:2.4:beta6:*:*:*:*:*:* |
| calligra | calligra | 2.4 | cpe:2.3:a:calligra:calligra:2.4:beta7:*:*:*:*:*:* |
| calligra | calligra | 2.4 | cpe:2.3:a:calligra:calligra:2.4:rc2:*:*:*:*:*:* |
| calligra | calligra | 2.4.1 | cpe:2.3:a:calligra:calligra:2.4.1:*:*:*:*:*:*:* |
| calligra | calligra | 2.4.2 | cpe:2.3:a:calligra:calligra:2.4.2:*:*:*:*:*:*:* |