PT-2021-2274 · Microsoft · Office Excel

Kdot · Published 2021-03-09 · Updated 2023-12-29 · CVE-2021-27053

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions: Microsoft Excel (affected versions not specified)

Description: The issue is related to incorrect code generation management in Microsoft Excel. It allows a remote attacker to execute arbitrary code. The vulnerability can be exploited through the parsing of XLS files, leading to a use-after-free condition.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Code Injection

Weakness Enumeration

CWE-94

Related Identifiers

BDU:2021-01357

CVE-2021-27053

ZDI-21-332

Affected Products

Office Excel

References · 13

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-27053 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-27053 · Security Note
• https://safe-surf.ru/specialists/bulletins-nkcki/662999 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27053 · Security Note
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-27053 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-01357 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-21-332 · Security Note
• https://osv.dev/vulnerability/CVE-2021-27053 · Vendor Advisory
• https://t.me/cvenotify/14092 · Telegram Post
• https://cybersecurity-help.cz/vdb/SB2021030940 · Note
• https://t.me/cibsecurity/24778 · Telegram Post
• https://t.me/cibsecurity/24773 · Telegram Post
• https://t.me/cvenotify/11794 · Telegram Post