CVE-2015-1770VulnerabilityPublished 03/28/2022Updated 10/24/2026

CVE-2015-1770: Microsoft Office Uninitialized Memory Use Vulnerability

Affects Microsoft OfficeSource CISA KEV

Severity

High

No CVSS score published yet

Exploitation: Actively exploited – in CISA KEV since 03/28/2022
KEV deadline: 04/18/2022
EPSS: 35.0% chance of exploitation in 30 days – higher than 98% of CVEs

What to do

CISA required action

Apply updates per vendor instructions.

nvd.nist.gov/vuln/detail/CVE-2015-1770 (opens in a new tab)

Description

CVE-2015-1770 is a vulnerability in Microsoft Office that allows remote attackers to execute arbitrary code by crafting a malicious Office document. This vulnerability involves the use of uninitialized memory, which can be exploited to gain control of the affected system. It has been observed in the wild, indicating active exploitation. No specific affected versions or patch information is provided in the available data.

Summary

Microsoft Office contains a vulnerability identified as CVE-2015-1770, where uninitialized memory use can be triggered by a specially crafted Office document. This flaw enables remote attackers to execute arbitrary code on the target system. The vulnerability has been exploited in the wild, as noted by CISA KEV. However, no detailed version information or patch status is included in the source data.

Impact

Successful exploitation of this vulnerability allows remote attackers to execute arbitrary code on the affected system, potentially leading to full system compromise. The presence of known exploits in the wild increases the risk to users of vulnerable Microsoft Office versions. Specific impact details such as privilege escalation or persistence are not provided.

Mitigation

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or workaround information is provided, users should monitor official Microsoft security advisories for updates and apply any available fixes promptly once released.

Weaknesses

CWE-19Unclassified weakness (opens in a new tab)

What to do

Description

AnalysisAI-generated, updated 10/24/2026, 11:11:38 UTC

Weaknesses

References

Related threats