How severe is CVE-2002-1340?

CVE-2002-1340 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2002-1340 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 12% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2002-1340?

CVE-2002-1340 affects Microsoft Office Web Components. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2002-1340?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2002-1340 published?

CVE-2002-1340 was published on 2002-12-18 and last updated on 2026-06-16.

CVE-2002-1340

CVE-2002-1340 is a medium-severity vulnerability in Microsoft Office Web Components with a CVSS 2.0 base score of 5.0. Its EPSS exploit-prediction score of 12% places it in the 96th percentile, indicating an elevated likelihood of exploitation.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 12% (96th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Microsoft Office Web Components
Published: 2002-12-18
Last modified: 2026-06-16

Description

The "ConnectionFile" property in the DataSourceControl component in Office Web Components (OWC) 10 allows remote attackers to determine the existence of local files by detecting an exception.

Frequently asked questions

What is CVE-2002-1340?: The "ConnectionFile" property in the DataSourceControl component in Office Web Components (OWC) 10 allows remote attackers to determine the existence of local files by detecting an exception.
How severe is CVE-2002-1340?: CVE-2002-1340 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2002-1340 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 12% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2002-1340?: CVE-2002-1340 affects Microsoft Office Web Components. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2002-1340?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2002-1340 published?: CVE-2002-1340 was published on 2002-12-18 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:microsoft:office_web_components:2002:*:*:*:*:*:*:*

More vulnerabilities in Microsoft Office Web Components

CVE-2009-2496 — Critical (CVSS 9.3): Heap-based buffer overflow in the Office Web Components ActiveX Control in Microsoft Office XP SP3, Office 2003 SP3,…
CVE-2009-1534 — Critical (CVSS 9.3): Buffer overflow in the Office Web Components ActiveX Control in Microsoft Office XP SP3, Office 2000 Web Components…
CVE-2009-0562 — Critical (CVSS 9.3): The Office Web Components ActiveX Control in Microsoft Office XP SP3, Office 2003 SP3, Office XP Web Components SP3,…
CVE-2009-1136 — Critical (CVSS 9.3): The Microsoft Office Web Components Spreadsheet ActiveX control (aka OWC10 or OWC11), as distributed in Office XP SP3…
CVE-2006-4695 — Critical (CVSS 9.3): Unspecified vulnerability in certain COM objects in Microsoft Office Web Components 2000 allows user-assisted remote…
CVE-2012-1856 — High (CVSS 8.8): The TabStrip ActiveX control in the Common Controls in MSCOMCTL.OCX in Microsoft Office 2003 SP3, Office 2003 Web…

All CVEs affecting Microsoft Office Web Components →