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CVE-2025-0650

24
FAUCET Score

CVE-2025-0650 describes a high-severity flaw in Open Virtual Network (OVN) that allows specially crafted UDP packets to bypass egress Access Control Lists (ACLs). This vulnerability specifically impacts OVN installations with a logical switch configured with DNS records and egress ACLs, potentially leading to unauthorized access to virtual machines and containers. With a CVSS score of 8.1 (HIGH), the attack requires no user interaction and has high impacts on confidentiality, integrity, and availability, though it has a high attack complexity. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
Red HatRed Hat OpenShift Container Platform 4
All Versions ImpactedCNA affecteddefault affected
Red HatRed Hat OpenShift Container Platform 4
Range not provided by sourceCNA affecteddefault unknown
Red HatFast Datapath For Red Hat Enterprise Linux 8
Range not provided by sourceCNA affecteddefault affected
Red HatFast Datapath For Red Hat Enterprise Linux 9
Range not provided by sourceCNA affecteddefault affected

CVSS Data

CVSS version used by this source: 3.1

8.1HIGH

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.85%
Probability of exploitation in next 30 days
EPSS Percentile
54.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0085 is in the 21st percentile among its peer group of 8,920 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (16)

redhatpatch availablevia redhat_api
Product: Fast Datapath for Red Hat Enterprise Linux 8Fixed in: ovn22.03-0:22.03.7-11.el8fdp
View patch
redhatpatch availablevia redhat_api
Product: Fast Datapath for Red Hat Enterprise Linux 8Fixed in: ovn22.06-0:22.06.0-273.el8fdp
View patch
redhatpatch availablevia redhat_api
Product: Fast Datapath for Red Hat Enterprise Linux 8Fixed in: ovn22.09-0:22.09.2-86.el8fdp
View patch
redhatpatch availablevia redhat_api
Product: Fast Datapath for Red Hat Enterprise Linux 8Fixed in: ovn22.12-0:22.12.1-107.el8fdp
View patch
redhatpatch availablevia redhat_api
Product: Fast Datapath for Red Hat Enterprise Linux 8Fixed in: ovn23.03-0:23.03.3-22.el8fdp
View patch
redhatpatch availablevia redhat_api
Product: Fast Datapath for Red Hat Enterprise Linux 8Fixed in: ovn23.06-0:23.06.4-26.el8fdp
View patch
redhatpatch availablevia redhat_api
Product: Fast Datapath for Red Hat Enterprise Linux 9Fixed in: ovn22.03-0:22.03.7-11.el9fdp
View patch
redhatpatch availablevia redhat_api
Product: Fast Datapath for Red Hat Enterprise Linux 9Fixed in: ovn22.06-0:22.06.0-273.el9fdp
View patch
redhatpatch availablevia redhat_api
Product: Fast Datapath for Red Hat Enterprise Linux 9Fixed in: ovn22.09-0:22.09.2-86.el9fdp
View patch
redhatpatch availablevia redhat_api
Product: Fast Datapath for Red Hat Enterprise Linux 9Fixed in: ovn22.12-0:22.12.1-107.el9fdp
View patch
redhatpatch availablevia redhat_api
Product: Fast Datapath for Red Hat Enterprise Linux 9Fixed in: ovn23.03-0:23.03.3-22.el9fdp
View patch
redhatpatch availablevia redhat_api
Product: Fast Datapath for Red Hat Enterprise Linux 9Fixed in: ovn23.06-0:23.06.4-26.el9fdp
View patch
redhatpatch availablevia redhat_api
Product: Fast Datapath for Red Hat Enterprise Linux 9Fixed in: ovn23.09-0:23.09.6-12.el9fdp
View patch
redhatpatch availablevia redhat_api
Product: Fast Datapath for Red Hat Enterprise Linux 9Fixed in: ovn24.03-0:24.03.4-53.el9fdp
View patch
redhatpatch availablevia redhat_api
Product: Fast Datapath for Red Hat Enterprise Linux 9Fixed in: ovn24.09-0:24.09.1-66.el9fdp
View patch
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Container Platform 4Fixed in: ovn23.06

Vendor Advisories (1)

redhatCVE-2025-0650Important

ovn: egress ACLs may be bypassed via specially crafted UDP packet

Jan 21, 2024

References

openwall.com / lists/oss-security/2025/01/22/11
access.redhat.com / errata/RHSA-2025:1083
access.redhat.com / errata/RHSA-2025:1084
access.redhat.com / errata/RHSA-2025:1085
access.redhat.com / errata/RHSA-2025:1086
access.redhat.com / errata/RHSA-2025:1087
access.redhat.com / errata/RHSA-2025:1088
access.redhat.com / errata/RHSA-2025:1089
access.redhat.com / errata/RHSA-2025:1090
access.redhat.com / errata/RHSA-2025:1091
access.redhat.com / errata/RHSA-2025:1092
access.redhat.com / errata/RHSA-2025:1093
access.redhat.com / errata/RHSA-2025:1094
access.redhat.com / errata/RHSA-2025:1095
access.redhat.com / errata/RHSA-2025:1096
access.redhat.com / errata/RHSA-2025:1097
access.redhat.com / security/cve/CVE-2025-0650
bugzilla.redhat.com / show_bug.cgi
openwall.com / lists/oss-security/2025/01/22/5