PT-2022-3305 · Microsoft · Office Web Apps Server+1

Published 2022-06-14 · Updated 2025-11-29 · CVE-2022-30173

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Microsoft Excel (affected versions not specified) Microsoft Office Web Apps Server (affected versions not specified)

Description The issue is related to insufficient input validation in Microsoft Excel and Microsoft Office Web Apps Server, which can be exploited to execute arbitrary code using a specially crafted malicious file. This can allow an attacker to run code remotely.

Recommendations For Microsoft Excel, consider disabling the execution of external files until a patch is available. For Microsoft Office Web Apps Server, restrict access to untrusted files to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Weakness Enumeration

CWE-20

Related Identifiers

BDU:2022-04049

CVE-2022-30173

Affected Products

Office Excel

Office Web Apps Server

References · 10

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-30173 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-30173 · Security Note
• https://bdu.fstec.ru/vul/2022-04049 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-30173 · Security Note
• https://osv.dev/vulnerability/CVE-2022-30173 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-30173 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2022-30173 · Vendor Advisory
• https://vuldb.com/ru/?id.201857 · Note
• https://cybersecurity-help.cz/vdb/SB2022061427 · Note
• https://t.me/cvenotify/32179 · Telegram Post