How severe is CVE-2013-3859?

CVE-2013-3859 has a CVSS 2.0 base score of 6.9, rated medium severity.

Is CVE-2013-3859 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-3859?

CVE-2013-3859 primarily affects Microsoft Office. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-3859?

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

When was CVE-2013-3859 published?

CVE-2013-3859 was published on 2013-09-11 and last updated on 2026-06-16.

CVE-2013-3859

CVE-2013-3859 is a medium-severity vulnerability in Microsoft Office with a CVSS 2.0 base score of 6.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-264.

Key facts

Severity: Medium (CVSS 2.0 base score 6.9)
EPSS exploit prediction: 2% (74th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Microsoft Office
Published: 2013-09-11
Last modified: 2026-06-16

Description

Microsoft Pinyin IME 2010, when used in conjunction with Microsoft Office 2010 SP1, does not properly restrict configuration options, which allows local users to gain privileges by starting Internet Explorer from the IME toolbar, aka "Chinese IME Vulnerability."

Frequently asked questions

What is CVE-2013-3859?: Microsoft Pinyin IME 2010, when used in conjunction with Microsoft Office 2010 SP1, does not properly restrict configuration options, which allows local users to gain privileges by starting Internet Explorer from the IME toolbar, aka "Chinese IME Vulnerability."
How severe is CVE-2013-3859?: CVE-2013-3859 has a CVSS 2.0 base score of 6.9, rated medium severity.
Is CVE-2013-3859 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-3859?: CVE-2013-3859 primarily affects Microsoft Office. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-3859?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-3859 published?: CVE-2013-3859 was published on 2013-09-11 and last updated on 2026-06-16.

References

Affected products (5)

cpe:2.3:a:microsoft:office:2010:sp1:*:*:*:*:*:*
cpe:2.3:a:microsoft:office:2010:sp1:x64:*:*:*:*:*
cpe:2.3:a:microsoft:office:2010:sp1:x86:*:*:*:*:*
cpe:2.3:a:microsoft:pinyin_ime:2010:*:*:*:*:*:x64:*
cpe:2.3:a:microsoft:pinyin_ime:2010:*:*:*:*:x86:*:*

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