CVE-2022-1259

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-09-01. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.5Exploit: NoneExposed: 0

A fix is available — apply it.

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)
EG Risk
—
EPSS
61.4%
KEV
Not listed

Published

August 31, 2022

Last Modified

November 21, 2024

References (6)

Vendor Advisories for CVE-2022-1259(8)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(7)

Vendor / EcosystemFixed in / PatchReleasedSource
redhateap7-wildfly-elytron-0:1.10.17-1.Final_redhat_00001.1.el7eap2025-06-25redhat
redhateap7-wildfly-openssl-linux-0:1.0.12-6.Final_redhat_00001.1.ep7.el72025-06-25redhat
redhatundertow2022-12-14redhat
redhatio.undertow/undertow-core:2.2.19.SP2-redhat-000012022-10-05redhat
redhateap7-undertow-0:2.2.19-1.SP2_redhat_00001.1.el7eap2022-10-05redhat
redhateap7-undertow-0:2.2.19-1.SP2_redhat_00001.1.el8eap2022-10-05redhat
redhateap7-undertow-0:2.2.19-1.SP2_redhat_00001.1.el9eap2022-10-05redhat

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.

Data Freshness Timeline

(refreshed 12× in last 7d / 49× 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.

Showing the most recent 100 of 102 total refreshes for this CVE.

  1. 2026-07-22 22:53 UTCEG score recompute
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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 61.4% 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.

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