CVE-2022-1259

HIGHNVD 7.57.5—

7.5

A flaw was found in Undertow. A potential security issue in flow control handling by the browser over HTTP/2 may cause overhead or a denial of service in the server. This flaw exists because of an incomplete fix for CVE-2021-3629.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 63.5%
KEV: Not listed

Published

August 31, 2022

Last Modified

November 21, 2024

References (6)

secalert@redhathttps://access.redhat.com/security/cve/CVE-2022-1259
secalert@redhathttps://bugzilla.redhat.com/show_bug.cgi?id=2072339
secalert@redhathttps://security.netapp.com/advisory/ntap-20221014-0006/
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/security/cve/CVE-2022-1259
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=2072339
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20221014-0006/

Patch Availability(7)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
redhat	eap7-wildfly-elytron-0:1.10.17-1.Final_redhat_00001.1.el7eap	2025-06-25	redhat
redhat	eap7-wildfly-openssl-linux-0:1.0.12-6.Final_redhat_00001.1.ep7.el7	2025-06-25	redhat
redhat	undertow	2022-12-14	redhat
redhat	io.undertow/undertow-core:2.2.19.SP2-redhat-00001	2022-10-05	redhat
redhat	eap7-undertow-0:2.2.19-1.SP2_redhat_00001.1.el7eap	2022-10-05	redhat
redhat	eap7-undertow-0:2.2.19-1.SP2_redhat_00001.1.el8eap	2022-10-05	redhat
redhat	eap7-undertow-0:2.2.19-1.SP2_redhat_00001.1.el9eap	2022-10-05	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-400Uncontrolled Resource Consumption (Denial of Service)

All Vendor Advisories

(8)

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 12× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-05 06:09 UTCepss_batch
2026-06-05 06:09 UTCepss_batch
2026-06-04 13:11 UTCepss_batch
2026-06-04 13:10 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
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2026-06-01 13:50 UTCepss_batch
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2026-05-31 22:29 UTCepss_batch
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2026-05-29 13:42 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
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2026-05-27 13:39 UTCepss_batch
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2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Frequently asked(5)

What is CVE-2022-1259?

CVE-2022-1259 is a high vulnerability published on August 31, 2022. A flaw was found in Undertow. A potential security issue in flow control handling by the browser over HTTP/2 may cause overhead or a denial of service in the server. This flaw exists because of an incomplete fix for CVE-2021-3629.

When was CVE-2022-1259 disclosed?

CVE-2022-1259 was first published in the National Vulnerability Database on August 31, 2022, 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-2022-1259 actively exploited?

CVE-2022-1259 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 63.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2022-1259?

CVE-2022-1259 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2022-1259?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-1259, 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

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CVE-2022-1259

Published

Last Modified

References (6)

Patch Availability(7)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2022-1259?

Same vendor

Same CWE

CVE-2022-1259

📅 Published

🔄 Last Modified

🔗 References (6)

Patch Availability(7)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2022-1259?

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References (6)

Frequently asked(5)

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