What is the CVSS score of CVE-2015-1770?

CVE-2015-1770 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 78.2%.

Is CVE-2015-1770 being actively exploited?

Yes, CVE-2015-1770 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, confirming active in-the-wild exploitation. Immediate patching is required.

Is there a patch available for CVE-2015-1770?

Yes, a patch is available for CVE-2015-1770. Update the affected software to the latest version immediately.

Microsoft CVE-2015-1770

HIGH

Access of Uninitialized Pointer (CWE-824)

2015-06-10 secure@microsoft.com

RCE Memory Corruption Microsoft

8.8

CVSS 3.1 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-824 ASVS 5.0 V15 - Secure Coding and Architecture Uninitialized pointer prevention MITRE ATT&CK 1 technique across 1 tactic: Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS score of 8.8 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, user interaction required. CISA has confirmed active exploitation in the wild. EPSS exploitation probability: 78.19%.
Exploit ScenarioDerived	This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the high-severity affected system.

Act Now Prioritize within 24-48h. Why: In CISA KEV with patch available.

Exploited in the wild (CISA KEV) Patch available 78.2% exploitation probability (EPSS)

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AnalysisAI

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.". Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Actively exploited in the wild (cisa kev) and EPSS exploitation probability 78.2%.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified under CWE-824. 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." Affected products include: Microsoft Office.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 8.8 HIGH

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Added to CISA KEV

Apr 21, 2026 - 15:31 CISA

CVE Published

Jun 10, 2015 - 01:59 cve.org

HIGH 8.8

DescriptionCVE.org

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."

Threat Intelligence Overview

Threat Score

5.6/10

Composite threat intelligence

EPSS Score

78.2%

Top 1% exploitable

Data Quality

5 sources

Confidence: Medium

NVD

CVE.org

CISA KEV

EPSS

VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV Yes

Public POC No

EPSS 78.2%

Patch available Yes

Active threat Yes

Deciding rule

In CISA KEV with patch available

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Out-of-Cycle

Exploitation· derived

Active

System Exposure· derived

Open

Automatable· derived

Human Impact· derived

High

Priority Score

172

Low Medium High Critical

KEV: +50

EPSS: +78

CVSS: +44

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Memory Corruption HIGH

Memory corruption occurs when a program writes data beyond the boundaries of allocated memory regions or accesses memory in unintended ways, violating the integrity of the process's address space.

Remote Code Execution CRITICAL

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.