CVE-2023-3153 | Service monitor mac flow is not rate limited

A flaw was found in Open Virtual Network where the service monitor MAC does not properly rate limit. This issue could allow an attacker to cause a denial of service, including on deployments with CoPP enabled and properly configured.

Published: 2023-10-04 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-3153 is rated Moderate Risk (42.5/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.00%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-3153

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.07% 1.00% +0.93%
2 2025-11-21 0.88% 0.07% -0.81%
3 2025-11-18 — 0.88% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-3153

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 3.9 1.4 [email protected]
5.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 3.9 1.4 [email protected]

Weakness enumeration for CVE-2023-3153

OS Trackers for CVE-2023-3153

vendor priority summary link
debian not yet assigned CVE-2023-3153 not yet assigned priority: Debian including 1 source packages (ovn), 4 status rows across 4 suites (bookworm, forky, sid, trixie): resolved 4. https://security-tracker.debian.org/tracker/CVE-2023-3153
redhat medium — https://access.redhat.com/security/cve/CVE-2023-3153
suse medium CVE-2023-3153 severity moderate: SUSE including 121 source package names (libopenvswitch-2_11-0, libopenvswitch-2_14-0, …), 437 product×package rows across 46 product lines (SUSE CaaS Platform 4.0, SUSE Linux Enterprise High Performance Computing 12 SP5, … (46 product lines)): Fixed 247, Will Not Fix 150, Known Not Affected 40. https://www.suse.com/security/cve/CVE-2023-3153/
ubuntu medium CVE-2023-3153 medium priority: Ubuntu including 1 source packages (ovn), 9 status rows across 9 suites (bionic, focal, jammy, kinetic, lunar, mantic, trusty, upstream, xenial): ignored 5, released 3, not-affected 1. https://ubuntu.com/security/CVE-2023-3153

Affected software / configurations for CVE-2023-3153

Vendor Product Version Raw CPE
ovn open_virtual_network < 22.03.3 cpe:2.3:a:ovn:open_virtual_network:*:*:*:*:*:*:*:*
ovn open_virtual_network >= 22.03.4, < 22.09.2 cpe:2.3:a:ovn:open_virtual_network:*:*:*:*:*:*:*:*
ovn open_virtual_network >= 22.09.3, < 22.12.1 cpe:2.3:a:ovn:open_virtual_network:*:*:*:*:*:*:*:*
ovn open_virtual_network >= 22.12.2, < 23.03.1 cpe:2.3:a:ovn:open_virtual_network:*:*:*:*:*:*:*:*
ovn open_virtual_network >= 23.03.2, < 23.06.1 cpe:2.3:a:ovn:open_virtual_network:*:*:*:*:*:*:*:*
redhat openshift_container_platform 4.0 cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:*
redhat fast_datapath — cpe:2.3:a:redhat:fast_datapath:-:*:*:*:*:*:*:*

References for CVE-2023-3153

cvelogic Threat Intelligence