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VULNERABILITIES

CVE-2021-32559 Details

Description

An integer overflow exists in pywin32 prior to version b301 when adding an access control entry (ACE) to an access control list (ACL) that would cause the size to be greater than 65535 bytes. An attacker who successfully exploited this vulnerability could crash the vulnerable process.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://github.com/fireeye/Vulnerability-Disclosures/blob/master/FEYE-2021-0017/FEYE-2021-0017.md CVEThird Party Advisory
https://github.com/mhammond/pywin32/issues/1700 CVEPatchThird Party Advisory
https://github.com/mhammond/pywin32/pull/1701 CVEThird Party Advisory
https://github.com/mhammond/pywin32/releases CVERelease NotesThird Party Advisory
https://github.com/fireeye/Vulnerability-Disclosures/blob/master/FEYE-2021-0017/FEYE-2021-0017.md [email protected]Third Party Advisory

see all 8 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-190Integer Overflow or Wraparound[email protected]

Affected Products

ProductVersions
mhammond pywin32
< 301

CPE

  • cpe:2.3:a:mhammond:pywin32:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

8 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2021-32559
NVD Published Date:
Jul 6, 2021
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2021-32559 Details - Not Deferred