What’s Vulnerable › Vulnerabilities

CVE-2023-34795

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-06-16 · updated 2026-06-17
• Weakness: CWE-416

Description

xlsxio v0.1.2 to v0.2.34 was discovered to contain a free of uninitialized pointer in the xlsxioread_sheetlist_close() function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted XLSX file.

Affected products

• Xlsxio Project Xlsxio: from 0.1.2 through 0.2.34

References

• https://github.com/brechtsanders/xlsxio/commit/d653f1604b54532f11b45dca1fa164b4a1f15e2d
• https://github.com/brechtsanders/xlsxio/issues/121
• https://github.com/xf1les/cve-advisories/blob/main/2023/CVE-2023-34795.md
• https://github.com/brechtsanders/xlsxio/commit/d653f1604b54532f11b45dca1fa164b4a1f15e2d
• https://github.com/brechtsanders/xlsxio/issues/121
• https://github.com/xf1les/cve-advisories/blob/main/2023/CVE-2023-34795.md

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