CVE-2024-21865

MEDIUMNVD 6.56.5—

6.5

HGW BL1500HM Ver 002.001.013 and earlier contains a use of week credentials issue. A network-adjacent unauthenticated attacker may connect to the product via SSH and use a shell.

CVSS v3: 6.5
EG Score: 6.5(medium)
EPSS: 10.7%
KEV: Not listed

Published

March 25, 2024

Last Modified

April 15, 2026

References (4)

vultures@jpcerthttps://jvn.jp/en/vu/JVNVU93546510/
vultures@jpcerthttps://kddi-tech.com/contents/appendix_L2_06.html#20304f4c-af1b-49fd-c3b5-8d1f55fd8b4f
af854a3a-2127-422b-91ae-364da2661108https://jvn.jp/en/vu/JVNVU93546510/
af854a3a-2127-422b-91ae-364da2661108https://www.au.com/support/service/internet/guide/modem/bl1500hm/firmware/

Weakness Classification(1)

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

CWE-1391

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.

2026-06-02 20:12 UTCepss_batch
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2026-06-01 13:51 UTCepss_batch
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2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch

Frequently asked(5)

What is CVE-2024-21865?

CVE-2024-21865 is a medium vulnerability published on March 25, 2024. HGW BL1500HM Ver 002.001.013 and earlier contains a use of week credentials issue. A network-adjacent unauthenticated attacker may connect to the product via SSH and use a shell.

When was CVE-2024-21865 disclosed?

CVE-2024-21865 was first published in the National Vulnerability Database on March 25, 2024, 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-2024-21865 actively exploited?

CVE-2024-21865 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 10.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2024-21865?

CVE-2024-21865 has a CVSS v3 base score of 6.5 (NVD).

How do I remediate CVE-2024-21865?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-21865, 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-2024-21865

📅 Published

🔄 Last Modified

🔗 References (4)