CSIRTS // UNIFIED SECURITY ADVISORY FEEDSYS ● ONLINE · POWERED BY INTELFUSIONS.COM

CSIRTSSecurity advisory fusion

← Back to feed

CVE-2026-55033: Integer overflow or wraparound in Microsoft Office Word allows an unauthorized attacker to execute code locally.

highCVSS 7.8CVE-2026-55033

Integer overflow or wraparound in Microsoft Office Word allows an unauthorized attacker to execute code locally.

Details

Source: NVD Recent CVEs (US · database · site)
Severity: high — CVSS 7.8
Published: 2026-07-14
Last updated: 2026-07-16
Exploitation: Not in CISA KEV at last sync

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-55033

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-550330.58% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 44% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-55033	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

critical[NEW] [critical] Microsoft Office products: Multiple vulnerabilitiescert-bund
unknownexploitedNCSC-2026-0237 [1.02] [H/H] Vulnerabilities Fixed in Microsoft Officencsc-nl
unknownexploitedNCSC-2026-0237 [1.01] [H/H] Vulnerabilities fixed in Microsoft Officencsc-nl
unknownMultiple vulnerabilities in Microsoft Office (July 15, 2026)cert-fr-avis
unknownMultiple vulnerabilities in Microsoft products (July 15, 2026)cert-fr-avis
unknownexploitedNCSC-2026-0237 [1.00] [M/H] Vulnerabilities fixed in Microsoft Officencsc-nl
highCVE-2026-55033: Microsoft Word Remote Code Execution Vulnerabilitymsrc

More from NVD Recent CVEs