ExploitedIn CISA KEVFix available

CVE-2018-0802

Exploitation confirmed. First attested on 2021-11-03 by CISA-ADP, CISA KEV, GCVE · kevintel.

Published2018-01-10
WeaknessCWE-787

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Equation Editor in Microsoft Office 2007, Microsoft Office 2010, Microsoft Office 2013, and Microsoft Office 2016 allow a remote code execution vulnerability due to the way objects are handled in memory, aka "Microsoft Office Memory Corruption Vulnerability". This CVE is unique from CVE-2018-0797 and CVE-2018-0812.

Timeline

dates in UTC

2018-01-1001:29CVE publishedNVD
2021-11-03Listed as exploited by GCVEGCVE
2021-11-03Exploitation first reportedCISA KEV
2021-11-03Added to the CISA KEV catalogCISA KEV
2025-02-0716:28SSVC exploitation set to activeCISA-ADP
2026-10-2319:23First public proof of conceptPoC-in-GitHub
2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2018-0802?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2018-0802?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Microsoft office

Branch	Affected	Fixed in	Source
2007.x	= 2007	no fix published	NVD
2010.x	= 2010	no fix published	NVD
2013.x	= 2013	no fix published	NVD
2016.x	= 2016	no fix published	NVD

Microsoft word

Branch	Affected	Fixed in	Source
2007.x	= 2007	no fix published	NVD
2010.x	= 2010	no fix published	NVD
2013.x	= 2013	no fix published	NVD
2016.x	= 2016	no fix published	NVD

Microsoft office compatibility pack

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

CISA’s required action: Apply updates per vendor instructions.due 2022-05-03

Advisories and patches

portal.msrc.microsoft.comPatch · Vendor Advisory

Detection

read 2026-10-23 19:23 UTC

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: 6 repositories, unverifiedzldww2011/CVE-2018-0802_POCrxwx/CVE-2018-0802Ridter/RTF_11882_0802likekabin/CVE-2018-0802_CVE-2017-11882roninAPT/CVE-2018-0802

CISA Known Exploited Vulnerability

Date Added: 2021-11-03
Patch Due Date: 2022-05-03
Ransomware Use: Unknown
Required Action: Apply updates per vendor instructions.

Sources

CISA KEVKEV entry2021-11-03
GCVEexploitation2021-11-03
CISA-ADPSSVC decisionactive2025-02-07
OpenCVESSVC decisionactive—
CISA-ADPCVSS 3.17.82025-02-07
NVDCVSS 3.17.8read 2026-10-23
NVDCVSS 2.09.3read 2026-10-23
CISA-ADPweakness (CWE)CWE-7872025-02-07
NVDweakness (CWE)CWE-787read 2026-10-23
FIRST EPSSEPSS score93.3 %read 2026-10-23
PoC-in-GitHubproof of concept6read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published: 2018-01-10
Last Modified: 2026-06-17
NVD status: Analyzed

Frequently asked questions

What is CVE-2018-0802?

Is CVE-2018-0802 actively exploited?

Yes. CVE-2018-0802 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2022-05-03.

What is the CVSS score for CVE-2018-0802?

CVE-2018-0802 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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