CVEvulnerability
CVE-2021-32559
6.5 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2021-07-06
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 4.0 MEDIUM — AV:N/AC:L/Au:S/C:N/I:N/A:P
- Weaknesses
- CWE-190
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.
Affected configurations
• mhammond pywin32 (< 301)
Related
Weakness · CWE (1)
- CWE-190 Integer Overflow or Wraparound weakness
References
- https://github.com/fireeye/Vulnerability-Disclosures/blob/master/FEYE-2021-0017/FEYE-2021-0017.md Third Party Advisory
- https://github.com/mhammond/pywin32/issues/1700 Patch, Third Party Advisory
- https://github.com/mhammond/pywin32/pull/1701 Third Party Advisory
- https://github.com/mhammond/pywin32/releases Release Notes, Third Party Advisory
- https://github.com/fireeye/Vulnerability-Disclosures/blob/master/FEYE-2021-0017/FEYE-2021-0017.md Third Party Advisory
- https://github.com/mhammond/pywin32/issues/1700 Patch, Third Party Advisory
- https://github.com/mhammond/pywin32/pull/1701 Third Party Advisory
- https://github.com/mhammond/pywin32/releases Release Notes, Third Party Advisory