Low severity3.3NVD Advisory· Published Mar 3, 2026· Updated Apr 29, 2026
CVE-2026-3463
CVE-2026-3463
Description
A weakness has been identified in xlnt-community xlnt up to 1.6.1. Impacted is the function xlnt::detail::binary_writer::append of the file source/detail/binary.hpp of the component Compound Document Parser. This manipulation causes heap-based buffer overflow. The attack can only be executed locally. The exploit has been made available to the public and could be used for attacks. Patch name: 147. It is suggested to install a patch to address this issue.
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Affected products
2cpe:2.3:a:xlnt-community:xlnt:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:xlnt-community:xlnt:*:*:*:*:*:*:*:*range: <=1.6.1
- (no CPE)range: <=1.6.1
Patches
Vulnerability mechanics
References
7- github.com/oneafter/0128/blob/main/xl2/repronvdExploit
- github.com/xlnt-community/xlnt/issues/138nvdExploitIssue TrackingVendor Advisory
- vuldb.comnvdThird Party AdvisoryVDB Entry
- vuldb.comnvdThird Party AdvisoryVDB Entry
- github.com/xlnt-community/xlnt/issues/138nvdIssue Tracking
- github.com/xlnt-community/xlnt/pull/147nvdIssue Tracking
- vuldb.comnvdPermissions RequiredVDB Entry
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