CVE-2023-43896

HIGHNVD 7.87.8—Elevated

7.8

A buffer overflow in Macrium Reflect 8.1.7544 and below allows attackers to escalate privileges or execute arbitrary code.

CVSS v3: 7.8
EG Score: 7.8(medium)
EPSS: 25.4%
KEV: Not listed

Published

October 10, 2023

Last Modified

November 21, 2024

References (6)

cve@mitrehttp://macrium.com
cve@mitrehttps://knowledgebase.macrium.com/display/KNOW80/CVE-2023-43896+Advisory
cve@mitrehttps://northwave-cybersecurity.com/vulnerability-notice/macrium-reflect-driver-out-of-bounds-write
af854a3a-2127-422b-91ae-364da2661108http://macrium.com
af854a3a-2127-422b-91ae-364da2661108https://knowledgebase.macrium.com/display/KNOW80/CVE-2023-43896+Advisory
af854a3a-2127-422b-91ae-364da2661108https://northwave-cybersecurity.com/vulnerability-notice/macrium-reflect-driver-out-of-bounds-write

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 17× 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.

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Frequently asked(5)

What is CVE-2023-43896?

CVE-2023-43896 is a high vulnerability published on October 10, 2023. A buffer overflow in Macrium Reflect 8.1.7544 and below allows attackers to escalate privileges or execute arbitrary code.

When was CVE-2023-43896 disclosed?

CVE-2023-43896 was first published in the National Vulnerability Database on October 10, 2023, 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-2023-43896 actively exploited?

CVE-2023-43896 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 25.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-43896?

CVE-2023-43896 has a CVSS v3 base score of 7.8 (NVD).

How do I remediate CVE-2023-43896?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-43896, 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-2023-43896

📅 Published

🔄 Last Modified

🔗 References (6)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-43896?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (6)

Frequently asked(5)

Related CVEs(same CWE)