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Vulnerability record · CVE-2022-32166 · published 28 September 2022

CVE-2022-32166: Cloudbase open vswitch out-of-bounds read vulnerability

Cloudbase · Open Vswitch

In ovs versions v0.90.0 through v2.5.0 are vulnerable to heap buffer over-read in flow.c. An unsafe comparison of “minimasks” function could lead access to an unmapped region of memory. This vulnerability is capable of crashing the software, memory modification, and possible remote execution.

6.1 CVSS 3.1 Medium EPSS 0.61% · top 53.1% CWE-125 · Out-of-bounds read
6.1CVSS 3.1 base score
0.61%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

In ovs versions v0.90.0 through v2.5.0 are vulnerable to heap buffer over-read in flow.c. An unsafe comparison of “minimasks” function could lead access to an unmapped region of memory. This vulnerability is capable of crashing the software, memory modification, and possible remote execution.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/cloudbase/ovs/commit/2ed6505555cdcb46f9b1f0329d1491b75290fc73 PatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/10/msg00036.html Mailing ListThird Party Advisory
https://www.mend.io/vulnerability-database/CVE-2022-32166 Third Party Advisory
https://github.com/cloudbase/ovs/commit/2ed6505555cdcb46f9b1f0329d1491b75290fc73 PatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/10/msg00036.html Mailing ListThird Party Advisory
https://www.mend.io/vulnerability-database/CVE-2022-32166 Third Party Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2022-32166), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.