CVE-2022-26414

MEDIUMNVD 6.05.5▼

6.0

A potential buffer overflow vulnerability was identified in some internal functions of Zyxel VMG3312-T20A firmware version 5.30(ABFX.5)C0, which could be exploited by a local authenticated attacker to cause a denial of service.

CVSS v3: 6.0
EG Score: 5.5(medium)
EPSS: 11.8%
KEV: Not listed

Published

April 11, 2022

Last Modified

November 21, 2024

References (2)

security@zyxelhttps://www.zyxel.com/support/OS-command-injection-and-buffer-overflow-vulnerabilities-of-CPE-and-ONTs.shtml
af854a3a-2127-422b-91ae-364da2661108https://www.zyxel.com/support/OS-command-injection-and-buffer-overflow-vulnerabilities-of-CPE-and-ONTs.shtml

Weakness Classification(1)

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

CWE-120Buffer Copy without Checking Size (Classic Buffer Overflow)

Data Freshness Timeline

(refreshed 14× 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
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Frequently asked(5)

What is CVE-2022-26414?

CVE-2022-26414 is a medium vulnerability published on April 11, 2022. A potential buffer overflow vulnerability was identified in some internal functions of Zyxel VMG3312-T20A firmware version 5.30(ABFX.5)C0, which could be exploited by a local authenticated attacker to cause a denial of service.

When was CVE-2022-26414 disclosed?

CVE-2022-26414 was first published in the National Vulnerability Database on April 11, 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-2022-26414 actively exploited?

CVE-2022-26414 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 11.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2022-26414?

CVE-2022-26414 has a CVSS v3 base score of 6.0 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 5.5.

How do I remediate CVE-2022-26414?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-26414, 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-2022-26414

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2022-26414?

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Published

Last Modified

References (2)

Frequently asked(5)

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