CVE-2026-6349

CRITICALNVD 9.89.8—

9.8

The iSherlock developed by HGiga has an OS Command Injection vulnerability, allowing unauthenticated local attackers to inject arbitrary OS commands and execute them on the server.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 86.7%
KEV: Not listed

Published

April 16, 2026

Last Modified

May 19, 2026

Advisory Details (1)

Auto-updated May 20, 2026

No patch confirmed yet. Sources: cert.

cert

HGiga｜iSherlock - OS Command Injection-TWCERT/CC Taiwan Computer Emergency Response Team/Coordination Center

https://www.twcert.org.tw/en/cp-139-10841-4f504-2.html

Weakness Classification(1)

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

CWE-78OS Command Injection

Data Freshness Timeline

(refreshed 12× 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.

2026-05-31 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
2026-05-29 13:44 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-26 13:44 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-21 22:43 UTCepss_batch
2026-05-20 22:38 UTCepss_batch
2026-05-20 11:22 UTCepss_batch
2026-05-20 08:02 UTCEG score recompute
2026-05-20 08:02 UTCGHSA enrichment
2026-05-20 04:23 UTCEG score recompute
2026-05-20 04:23 UTCGHSA enrichment
2026-05-20 00:44 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-6349?

CVE-2026-6349 is a critical vulnerability published on April 16, 2026. The iSherlock developed by HGiga has an OS Command Injection vulnerability, allowing unauthenticated local attackers to inject arbitrary OS commands and execute them on the server.

When was CVE-2026-6349 disclosed?

CVE-2026-6349 was first published in the National Vulnerability Database on April 16, 2026, with the most recent update on May 19, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-6349 actively exploited?

CVE-2026-6349 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 86.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-6349?

CVE-2026-6349 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2026-6349?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-6349, 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-2026-6349

📅 Published

🔄 Last Modified

📋 Advisory Details (1)

HGiga｜iSherlock - OS Command Injection-TWCERT/CC Taiwan Computer Emergency Response Team/Coordination Center

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2026-6349?

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Advisory Details (1)

Frequently asked(5)

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