CVE-2022-29859

CRITICALNVD 9.89.8—

9.8

component/common/network/dhcp/dhcps.c in ambiot amb1_sdk (aka SDK for Ameba1) before 2022-03-11 mishandles data structures for DHCP packet data.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 63.2%
KEV: Not listed

Published

April 27, 2022

Last Modified

November 21, 2024

Advisory Details (2)

Auto-updated Jun 6, 2026

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

generic

CVE-2022-29859 – Realtek IoT/Wi-Fi MCU Solutions

https://www.amebaiot.com/zh/security_bulletin/cve-2022-29859/

github_commit

commit 4b73f58f3291 (ambiot/amb1_sdk)

Fix landed in ambiot/amb1_sdk commit 4b73f58f3291 — awaiting tagged release

https://github.com/ambiot/amb1_sdk/commit/4b73f58f32914d0081d79a79e53a3215c8c1ea56

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
2026-06-07 15:23 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-05 22:45 UTCEPSS rescore
2026-06-05 22:45 UTCEPSS rescore
2026-06-05 06:09 UTCEPSS rescore
2026-06-05 06:09 UTCEPSS rescore
2026-06-04 13:11 UTCEPSS rescore
2026-06-04 13:11 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-02 20:11 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

Frequently asked(5)

What is CVE-2022-29859?

CVE-2022-29859 is a critical vulnerability published on April 27, 2022. component/common/network/dhcp/dhcps.c in ambiot amb1_sdk (aka SDK for Ameba1) before 2022-03-11 mishandles data structures for DHCP packet data.

When was CVE-2022-29859 disclosed?

CVE-2022-29859 was first published in the National Vulnerability Database on April 27, 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-2022-29859 actively exploited?

CVE-2022-29859 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 63.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2022-29859?

CVE-2022-29859 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2022-29859?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-29859, 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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