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CVE-2018-0802

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 f…

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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.
CVSS 7.8 (HIGH) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
0.0/10
REALITY · THREAT PRIORITY
8.6/10
General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?
  • Recorded exploitation baseline: +7.00
  • Technical severity: CVSS 7.8: +1.17
  • Fresh EPSS: 93.29%: +0.47

General review priority, not probability, victim count or asset-specific risk. A range covers missing CVSS/EPSS inputs within the current evidence state.

Sources: 9 documents and public datasets.

Hype components

Headline sample (25%)
0/100
Press, 30 days (60%)
0/100
Grounded branding (15%)
0/100
HYPE TOTAL0/100

Sources and documents

Recorded Future
Press · 07 Aug 2026, 07:00 · July 2026 CVE Landscape - Recorded Future
CyberSecurityNews
Press · 13 Feb 2026, 08:00 · New XWorm RAT Campaign Uses Themed Phishing Lures and CVE‑2018‑0802 Excel Exploit to Evade Detection - CyberSecurityNews
SOC Prime
Press · 11 Feb 2026, 08:00 · XWorm Phish Abuses CVE-2018-0802 for Fileless RAT - SOC Prime
Check Point Blog
Press · 08 Feb 2024, 08:00 · MalDocs in Word and Excel: A Persistent Cybersecurity Challenge - Check Point Blog
Qualys
Press · 04 Sep 2023, 07:00 · Top 20 Vulnerabilities Exploited by Cyber Attackers - Qualys
See all 9 source documents
Proofpoint
Press · 25 Mar 2018, 07:00 · Unraveling ThreadKit: New document exploit builder used to distribute The Trick, Formbook, Loki Bot and other malware - Proofpoint
Unit 42
Press · 19 Jan 2018, 08:00 · Traps Prevents Microsoft Office Equation Editor Zero-Day CVE-2018-0802 - Unit 42
Check Point Research
Press · 09 Jan 2018, 08:00 · Exploiting CVE-2018-0802 Office Equation Vulnerabilty Demo Video - Check Point Research
Check Point Research
Press · 09 Jan 2018, 08:00 · Many Formulas, One Calc – Exploiting a New Office Equation Vulnerability - Check Point Research

Score evolution

● Hype   ● Reality

Earlier evidence-support scores are retained in history; this chart shows only the current priority definition.

First record: hype 0.0 · reality 8.6 (2026-11-02 15:12). The curve appears once the score changes.

Public exploit evidence

3

Public exploit entries / repo candidates

See 3 repos with metrics
RepositoryStarsForksLanguageUpdated
rxwx/CVE-2018-0802270127Python28 Feb 2018, 12:32
Ridter/RTF_11882_080216659Python12 Jan 2018, 11:42
zldww2011/CVE-2018-0802_POC6727Python11 Jan 2018, 09:23
Evidence context and dated references

Reality is general threat/review priority, combining observed exploitation, CVSS severity and fresh EPSS. Evidence confidence is separate. This is not calibrated risk, a victim count or an asset-specific assessment. A range reflects missing numeric inputs.

Evidence in context

Confidence in exploitation evidence
Exploitation recorded
Priority basis
Recorded exploitation; CVSS 7.8; EPSS 93.3%
Attention, last 30 days
0 distinct story titles; 0 press documents; 0 publisher domains.
Technical potential
local access, no prior privileges, user interaction.
Observed activity
Exploitation recorded in CISA KEV.
Known scale
Not quantified.
Evidence confidence basis
Trusted exploitation confirmation

Score evaluated: 2026-11-05 13:57:54.561888+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
First press mention
09 Jan 2018, 08:00
Published
10 Jan 2018, 01:00
Added to the CISA KEV catalog
03 Nov 2021, 00:00
Latest press mention
07 Aug 2026, 07:00
Score calculated
05 Nov 2026, 13:57
PoCs on GitHub
3 repositories