Use After Free in Xlsxio Project

CVE-2023-34795

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.

Vulnerability class: Use-After-Free

EPSS: 0.004 (28.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-34795?
CVE-2023-34795 is a high-severity vulnerability in Xlsxio Project, classified under Use After Free. CVSS score: 7.8/10. Published 2023-06-16.
How severe is CVE-2023-34795?
High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2023-34795 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.