CVE-2022-32166: cloudbase open_vswitch Out-of-bounds Read
CVSS: 6.1v3.1MediumModified
AliasesSUSE-SU-2022:4050-1UBUNTU-CVE-2022-32166USN-5698-1USN-5698-2DEBIAN-CVE-2022-32166DLA-3168-1
Published 28-09-2022Last modified 21-05-2025
Vulnerability summary
CVE-2022-32166 is a medium (CVSS 6.1) Out-of-bounds Read vulnerability in cloudbase open_vswitch. EPSS estimates a 0.61% chance of exploitation in the next 30 days, higher than 48% of scored vulnerabilities.
CVSS score
6.1/10
010
Medium · v3.1 (CVE.org)EPSS score
0.61%
0%100%
Low · +0.03 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 3 · Related 3Timeline
- 28-09-2022PublishedVulnerability first disclosed.
- 21-05-2025Last modifiedVulnerability information updated.
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 metrics
4 scores · 4 sources · 1 versionMedium 6.1Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:HSourcesAll 4 agree
- OSV · UbuntuEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
- OSV · DebianEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
- NVDNIST6.1MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
EPSS trend
Probability
0.61%
Chance of exploitation in the next 30 days
Percentile
48%
Versus all other CVEs
30-day change
+0.03 pp
From 0.58% on 20-09-2026
20-09-202620-10-2026
EPSS score0.61%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian2 products
- openvswitch< 2.10.7+ds1-0+deb10u2 | < 2.13.0+dfsg1-1
- debian_linuxEOL10.0
Suse2 products
- openvswitch&distro=SUSE Linux Enterprise Server 12 SP5< 2.11.5-3.12.1
- openvswitch&distro=SUSE Linux Enterprise Server for SAP Applications 12 SP5< 2.11.5-3.12.1
Cloudbase1 product
- open_vswitch≥ 0.90.0, ≤ 2.5.0
Ovs1 product
- ovs≥ v0.90.0, < unspecified | ≥ unspecified, ≤ v2.5.0
Ubuntu1 product
- openvswitch< 2.9.8-0ubuntu0.18.04.3 | < 2.5.9-0ubuntu0.16.04.3+esm1
5 vendors · 7 products
