CVE-2022-4337

CRITICALNVD 9.89.8—

9.8

An out-of-bounds read in Organization Specific TLV was found in various versions of OpenvSwitch.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 65.1%
KEV: Not listed

Published

January 10, 2023

Last Modified

November 21, 2024

Advisory Details (5)

Auto-updated May 29, 2026

No patch confirmed yet. Sources: github_pr.

generic

oss-security - Re: [ADVISORY] LLDP underflow while parsing malformed Auto Attach TLV (Open vSwitch)

https://www.openwall.com/lists/oss-security/2022/12/21/4

generic

[SECURITY] [DSA 5319-1] openvswitch security update

https://www.debian.org/security/2023/dsa-5319

generic

Open vSwitch: Multiple Vulnerabilities (GLSA 202311-16) — Gentoo security

https://security.gentoo.org/glsa/202311-16

generic

[ovs-dev] [PATCH v2] lldp: fix bugs when parsing malformed AutoAttach

https://mail.openvswitch.org/pipermail/ovs-dev/2022-December/400596.html

github_pr

fix bugs when parsing malformed LLDP packets

Upstream fix in progress (PR #405 · openvswitch/ovs, state=closed)

https://github.com/openvswitch/ovs/pull/405

Patch Availability(6)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
ubuntu	openvswitch-test (3.0.3-0ubuntu0.22.10.2) @ kinetic	2026-05-25	ubuntu
redhat	openvswitch2.17-0:2.17.0-71.el8fdp	2023-02-09	redhat
redhat	openvswitch2.16-0:2.16.0-111.el8fdp	2023-02-09	redhat
redhat	openvswitch2.17-0:2.17.0-62.el9fdp	2023-02-09	redhat
redhat	openvswitch2.13-0:2.13.0-212.el8fdp	2023-02-09	redhat
redhat	openvswitch2.15-0:2.15.0-133.el8fdp	2023-02-09	redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-125Out-of-bounds Read

All Vendor Advisories

(7)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 13× in last 7d / 20× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

2026-06-08 14:15 UTCEPSS rescore
2026-06-08 14:15 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-05 22:46 UTCEPSS rescore
2026-06-05 22:46 UTCEPSS rescore
2026-06-05 06:09 UTCEPSS rescore
2026-06-05 06:09 UTCEPSS rescore
2026-06-04 13:11 UTCEPSS rescore
2026-06-02 20:12 UTCEPSS rescore
2026-06-02 20:12 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 00:15 UTCEPSS rescore
2026-05-31 00:15 UTCEPSS rescore
2026-05-29 13:43 UTCEPSS rescore

Frequently asked(5)

What is CVE-2022-4337?

CVE-2022-4337 is a critical vulnerability published on January 10, 2023. An out-of-bounds read in Organization Specific TLV was found in various versions of OpenvSwitch.

When was CVE-2022-4337 disclosed?

CVE-2022-4337 was first published in the National Vulnerability Database on January 10, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2022-4337 actively exploited?

CVE-2022-4337 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 65.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2022-4337?

CVE-2022-4337 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2022-4337?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-4337, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2022-4337

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CVE-2022-4337

Published

Last Modified

Advisory Details (5)

oss-security - Re: [ADVISORY] LLDP underflow while parsing malformed Auto Attach TLV (Open vSwitch)

[SECURITY] [DSA 5319-1] openvswitch security update

Open vSwitch: Multiple Vulnerabilities (GLSA 202311-16) — Gentoo security

[ovs-dev] [PATCH v2] lldp: fix bugs when parsing malformed AutoAttach

fix bugs when parsing malformed LLDP packets

Patch Availability(6)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2022-4337?

Same vendor

Same CWE

CVE-2022-4337

📅 Published

🔄 Last Modified

📋 Advisory Details (5)

oss-security - Re: [ADVISORY] LLDP underflow while parsing malformed Auto Attach TLV (Open vSwitch)

[SECURITY] [DSA 5319-1] openvswitch security update

Open vSwitch: Multiple Vulnerabilities (GLSA 202311-16) — Gentoo security

[ovs-dev] [PATCH v2] lldp: fix bugs when parsing malformed AutoAttach

fix bugs when parsing malformed LLDP packets

Patch Availability(6)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2022-4337?

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Advisory Details (5)

Frequently asked(5)

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