CVE-2021-31178

Microsoft Office Information Disclosure Vulnerability

CVSS v3 5.5 MEDIUM
CVSS v2.0 4.3 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

4.3^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:P/I:N/A:N

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31178	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:microsoft:365_apps:-::::enterprise:::
	cpe:2.3:a:microsoft:excel:2013:sp1::::::
	cpe:2.3:a:microsoft:excel:2013:sp1:::rt:::*
	cpe:2.3:a:microsoft:excel:2016:::::::*
	cpe:2.3:a:microsoft:office:2013:sp1::::::
	cpe:2.3:a:microsoft:office:2013:sp1:::rt:::*
	cpe:2.3:a:microsoft:office:2016:::::-::
	cpe:2.3:a:microsoft:office:2019:::::-::
	cpe:2.3:a:microsoft:office_online_server:-:::::::*
	cpe:2.3:a:microsoft:office_web_apps_server:2013:sp1::::::
	cpe:2.3:a:microsoft:word:2013:sp1::::::
	cpe:2.3:a:microsoft:word:2013:sp1:::rt:::*
	cpe:2.3:a:microsoft:word:2016:::::::*

History

No history.

Information

Published : 2021-05-11 19:15

Updated : 2023-08-02 00:15

NVD link : CVE-2021-31178

Mitre link : CVE-2021-31178

CVE.ORG link : CVE-2021-31178

JSON object : View

Products Affected

microsoft

office
excel
office_online_server
365_apps
word
office_web_apps_server

CWE

CWE-191

Integer Underflow (Wrap or Wraparound)

{"id": "CVE-2021-31178", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.3, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "MEDIUM", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}], "cvssMetricV31": [{"type": "Primary", "source": "secure@microsoft.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 1.8}, {"type": "Secondary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2021-05-11T19:15:09.737", "references": [{"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31178", "tags": ["Patch", "Vendor Advisory"], "source": "secure@microsoft.com"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-191"}]}], "descriptions": [{"lang": "en", "value": "Microsoft Office Information Disclosure Vulnerability"}, {"lang": "es", "value": "Una vulnerabilidad de Divulgaci\u00f3n de Informaci\u00f3n de Microsoft Office"}], "lastModified": "2023-08-02T00:15:12.993", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:*:*", "vulnerable": true, "matchCriteriaId": "40C15EDD-98D4-4D06-BA06-21AE0F33C72D"}, {"criteria": "cpe:2.3:a:microsoft:excel:2013:sp1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F564117D-450D-45C4-9688-AF35F630A8A7"}, {"criteria": "cpe:2.3:a:microsoft:excel:2013:sp1:*:*:rt:*:*:*", "vulnerable": true, "matchCriteriaId": "3A062169-527E-43DA-8AE0-FD4FBA1B2A9B"}, {"criteria": "cpe:2.3:a:microsoft:excel:2016:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "09BF0981-749E-470B-A7AC-95AD087797EF"}, {"criteria": "cpe:2.3:a:microsoft:office:2013:sp1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "120690A6-E0A1-4E36-A35A-C87109ECC064"}, {"criteria": "cpe:2.3:a:microsoft:office:2013:sp1:*:*:rt:*:*:*", "vulnerable": true, "matchCriteriaId": "F7DDFFB8-2337-4DD7-8120-56CC8EF134B4"}, {"criteria": "cpe:2.3:a:microsoft:office:2016:*:*:*:*:-:*:*", "vulnerable": true, "matchCriteriaId": "384D4B06-BC7D-45E3-83B2-9A661985715F"}, {"criteria": "cpe:2.3:a:microsoft:office:2019:*:*:*:*:-:*:*", "vulnerable": true, "matchCriteriaId": "C5282C83-86B8-442D-851D-B54E88E8B1F1"}, {"criteria": "cpe:2.3:a:microsoft:office_online_server:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E98AE986-FA31-4301-8025-E8915BA4AC5E"}, {"criteria": "cpe:2.3:a:microsoft:office_web_apps_server:2013:sp1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "941B16A2-931D-4031-A016-5EA60E87BE20"}, {"criteria": "cpe:2.3:a:microsoft:word:2013:sp1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "32E1400A-836A-4E48-B2CD-2B0A9A8241BA"}, {"criteria": "cpe:2.3:a:microsoft:word:2013:sp1:*:*:rt:*:*:*", "vulnerable": true, "matchCriteriaId": "45E21528-4B0F-4A6F-82AD-DF7FDBF67C8F"}, {"criteria": "cpe:2.3:a:microsoft:word:2016:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4DA042D4-B14E-4DDF-8423-DFB255679EFE"}], "operator": "OR"}]}], "sourceIdentifier": "secure@microsoft.com"}