CVE-2012-3455

Heap-based buffer overflow in the read function in filters/words/msword-odf/wv2/src/styles.cpp in the Microsoft import filter in KOffice 2.3.3 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-2012-3456, but it was SPLIT by the CNA even though Calligra and KOffice share the same codebase.

Published: 2012-08-20 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2012-3455 is rated Moderate Risk (60.7/100): CVSS High severity, with high exploitation likelihood (EPSS 5.29%, 91th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. 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.

Exploit prediction scoring system (EPSS) score for CVE-2012-3455

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 6.61% 5.29% -1.32%
2 2025-03-30 10.37% 6.61% -3.76%
3 2025-03-29 — 10.37% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2012-3455

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2012-3455

OS Trackers for CVE-2012-3455

vendor priority summary link
ubuntu medium CVE-2012-3455 medium priority: Ubuntu including 2 source packages (koffice, wv2), 32 status rows across 16 suites (hardy, lucid, natty, oneiric, precise, quantal, raring, saucy, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): DNE 16, ignored 7, not-affected 5, released 3, needs-triage 1. https://ubuntu.com/security/CVE-2012-3455

Affected software / configurations for CVE-2012-3455

Vendor Product Version Raw CPE
kde koffice <= 2.3.3 cpe:2.3:a:kde:koffice:*:*:*:*:*:*:*:*
kde koffice 1.2 cpe:2.3:a:kde:koffice:1.2:*:*:*:*:*:*:*
kde koffice 1.2.1 cpe:2.3:a:kde:koffice:1.2.1:*:*:*:*:*:*:*
kde koffice 1.3 cpe:2.3:a:kde:koffice:1.3:*:*:*:*:*:*:*
kde koffice 1.3 cpe:2.3:a:kde:koffice:1.3:beta1:*:*:*:*:*:*
kde koffice 1.3 cpe:2.3:a:kde:koffice:1.3:beta2:*:*:*:*:*:*
kde koffice 1.3 cpe:2.3:a:kde:koffice:1.3:beta3:*:*:*:*:*:*
kde koffice 1.3.1 cpe:2.3:a:kde:koffice:1.3.1:*:*:*:*:*:*:*
kde koffice 1.3.2 cpe:2.3:a:kde:koffice:1.3.2:*:*:*:*:*:*:*
kde koffice 1.3.3 cpe:2.3:a:kde:koffice:1.3.3:*:*:*:*:*:*:*
kde koffice 1.3.4 cpe:2.3:a:kde:koffice:1.3.4:*:*:*:*:*:*:*
kde koffice 1.3.5 cpe:2.3:a:kde:koffice:1.3.5:*:*:*:*:*:*:*
kde koffice 1.4 cpe:2.3:a:kde:koffice:1.4:*:*:*:*:*:*:*
kde koffice 1.4.1 cpe:2.3:a:kde:koffice:1.4.1:*:*:*:*:*:*:*
kde koffice 1.4.2 cpe:2.3:a:kde:koffice:1.4.2:*:*:*:*:*:*:*
kde koffice 1.6.1 cpe:2.3:a:kde:koffice:1.6.1:*:*:*:*:*:*:*

References for CVE-2012-3455

cvelogic Threat Intelligence