CVE-2023-40894

CRITICALNVD 9.89.8—

9.8

Tenda AC8 v4 US_AC8V4.0si_V16.03.34.06_cn was discovered to contain a stack overflow via parameter list at /goform/SetStaticRouteCfg.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 48.4%
KEV: Not listed

Published

August 24, 2023

Last Modified

December 8, 2025

References (2)

cve@mitrehttps://github.com/peris-navince/founded-0-days/blob/main/ac8/fromSetStaticRouteCfg/1.md
af854a3a-2127-422b-91ae-364da2661108https://github.com/peris-navince/founded-0-days/blob/main/ac8/fromSetStaticRouteCfg/1.md

Weakness Classification(1)

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

CWE-787Out-of-bounds Write

Data Freshness Timeline

(refreshed 13× in last 7d / 59× 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.

2026-06-23 21:31 UTCEPSS rescore
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2026-06-10 13:21 UTCEPSS rescore
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2026-05-24 18:46 UTCEG score recompute
2026-05-24 18:46 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2023-40894?

CVE-2023-40894 is a critical vulnerability published on August 24, 2023. Tenda AC8 v4 USAC8V4.0siV16.03.34.06_cn was discovered to contain a stack overflow via parameter list at /goform/SetStaticRouteCfg.

When was CVE-2023-40894 disclosed?

CVE-2023-40894 was first published in the National Vulnerability Database on August 24, 2023, with the most recent update on December 8, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-40894 actively exploited?

CVE-2023-40894 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 48.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-40894?

CVE-2023-40894 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2023-40894?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-40894, 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-2023-40894

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-40894?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (2)

Frequently asked(5)

Related CVEs(same CWE)