THREATPORT/VULNERABILITY/CVE-2012-3456
HIGH SEVERITY

CVE-2012-3456

Calligra vulnerability

CVSS
7.5
EPSS
20.1%
EPSS pct
97th
Exploited
No known
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.
Affected vendor
Calligra
Affected product
Calligra
CVSS vector
AV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness type (CWE)
  • CWE-119 — Improper Restriction of Operations within Memory Bounds
Published
2012-08-20

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no authentication. Successful exploitation leads to partial impact to confidentiality, partial impact to integrity, partial impact to availability.

Its EPSS score of 20.1% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2012-3456

  • Confirm whether Calligra Calligra is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2012-3456.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2012-3456

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2012-3456 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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