Is CVE-2015-1770 in the CISA KEV catalog?

Yes. CVE-2015-1770 is on the CISA Known Exploited Vulnerabilities list, added 2022-03-28.

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

CVE-2015-1770 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2015-1770?

CVE-2015-1770 has an EPSS score of 35.10% (98th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2015-1770?

No published fix for CVE-2015-1770 has been found yet. It is on the CISA Known Exploited Vulnerabilities list; federal agencies must remediate by 2022-04-18. Apply the vendor's mitigations per CISA's guidance.

CVE & CISA-KEV Catalog

CVE-2015-1770

HIGHCISA KEVEPSS 98th pctl

8.8

CVSS v3

NVD

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."

CWE-824

How to fix

Actively exploited, no published fix found yet

CISA required action: Apply updates per vendor instructions.

Federal remediation due: 2022-04-18

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploit Intelligence

35.10%probability of exploitation in 30 days

98thpercentile

Very high risk: more likely to be exploited than 98% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Microsoft Office Uninitialized Memory Use Vulnerability

Microsoft Office allows remote attackers to execute arbitrary code via a crafted Office document.

Apply updates per vendor instructions.

Remediation due: 2022-04-18

References

Patch1

docs.microsoft.com

Third-Party Advisory2

Government Resource1

cisa.gov

Related Vulnerabilities

Other CWE-824 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2018-9948	Medium	6.5	64%	-	-
CVE-2018-11803	High	7.5	58%	-	Fix
CVE-2022-21971	High	7.8	54%	KEV	Fix
CVE-2010-1818	High	9.3	43%	-	-
CVE-2017-12561	Critical	9.8	31%	-	-
CVE-2019-0853	High	8.8	28%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-22.