CVE-2026-24822

CRITICALNVD 10.0

10.0

Out-of-bounds Write, Heap-based Buffer Overflow vulnerability in ttttupup wxhelper (src modules). This vulnerability is associated with program files mongoose.C.

This issue affects wxhelper: through 3.9.10.19-v1.

CVSS v3: 10.0
EG Score: 0.0(none)
EPSS: 24.1%
KEV: Not listed

Published

January 27, 2026

Last Modified

April 15, 2026

Advisory Details (1)

Auto-updated May 29, 2026

Upstream fix merged — awaiting tagged release. Sources: github_pr.

github_pr

fixed mqtt variable length header issue

Fix merged in ttttupup/wxhelper PR #515 on 2025-04-23 — awaiting tagged release

https://github.com/ttttupup/wxhelper/pull/515

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 17× 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 22:47 UTCepss_batch
2026-06-05 22:47 UTCepss_batch
2026-06-05 06:10 UTCepss_batch
2026-06-05 06:10 UTCepss_batch
2026-06-04 13:12 UTCepss_batch
2026-06-04 13:12 UTCepss_batch
2026-06-02 20:13 UTCepss_batch
2026-06-02 20:13 UTCepss_batch
2026-06-01 16:27 UTCOSV refresh
2026-06-01 13:51 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch

Frequently asked(5)

What is CVE-2026-24822?

CVE-2026-24822 is a critical vulnerability published on January 27, 2026. Out-of-bounds Write, Heap-based Buffer Overflow vulnerability in ttttupup wxhelper (src modules). This vulnerability is associated with program files mongoose.C. This issue affects wxhelper: through 3.9.10.19-v1.

When was CVE-2026-24822 disclosed?

CVE-2026-24822 was first published in the National Vulnerability Database on January 27, 2026, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-24822 actively exploited?

CVE-2026-24822 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 24.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-24822?

CVE-2026-24822 has a CVSS v3 base score of 10.0 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 0.0.

How do I remediate CVE-2026-24822?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-24822, 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-2026-24822

📅 Published

🔄 Last Modified

📋 Advisory Details (1)

fixed mqtt variable length header issue

Weakness Classification(2)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2026-24822?

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Published

Last Modified

Advisory Details (1)

Frequently asked(5)

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