How severe is CVE-2015-1770?

CVE-2015-1770 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2015-1770 being actively exploited?

Yes. CVE-2015-1770 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-03-28, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2015-1770?

CVE-2015-1770 primarily affects Microsoft Office. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-1770?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2015-1770 have an EU (EUVD) identifier?

Yes. CVE-2015-1770 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2015-1900. It is also flagged as exploited in the EUVD (since 2022-03-28).

When was CVE-2015-1770 published?

CVE-2015-1770 was published on 2015-06-10 and last updated on 2026-06-17.

CVE-2015-1770

CVE-2015-1770 is a high-severity vulnerability in Microsoft Office with a CVSS 3.x base score of 8.8. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2022-03-28). The underlying weakness is classified as CWE-824.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.3
EPSS exploit prediction: 35% (98th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2022-03-28)
EU (EUVD) id: EUVD-2015-1900
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2022-03-28)
Weakness: CWE-824
Affected product: Microsoft Office
Published: 2015-06-10
Last modified: 2026-06-17

Description

Microsoft Office 2013 SP1 and 2013 RT SP1 allows remote attackers to execute arbitrary code via a crafted Office document, aka "Microsoft Office Uninitialized Memory Use Vulnerability."

Frequently asked questions

What is CVE-2015-1770?: Microsoft Office 2013 SP1 and 2013 RT SP1 allows remote attackers to execute arbitrary code via a crafted Office document, aka "Microsoft Office Uninitialized Memory Use Vulnerability."
How severe is CVE-2015-1770?: CVE-2015-1770 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2015-1770 being actively exploited?: Yes. CVE-2015-1770 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-03-28, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2015-1770?: CVE-2015-1770 primarily affects Microsoft Office. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-1770?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2015-1770 have an EU (EUVD) identifier?: Yes. CVE-2015-1770 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2015-1900. It is also flagged as exploited in the EUVD (since 2022-03-28).
When was CVE-2015-1770 published?: CVE-2015-1770 was published on 2015-06-10 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:microsoft:office:2013:sp1:*:*:-:*:*:*
cpe:2.3:a:microsoft:office:2013:sp1:*:*:rt:*:*:*

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