CVE-2026-3463
4.8
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| xlnt-community | xlnt | 1.6.0 | affected |
| xlnt-community | xlnt | 1.6.1 | affected |
Weaknesses
- CWE-122: Heap-based Buffer Overflow
- CWE-119: Memory Corruption
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: poc
- Automatable: no
- Technical Impact: partial
References
- https://vuldb.com/?id.348530
- https://vuldb.com/?ctiid.348530
- https://vuldb.com/?submit.764643
- https://github.com/xlnt-community/xlnt/issues/138
- https://github.com/xlnt-community/xlnt/issues/138#issuecomment-3868381672
- https://github.com/oneafter/0128/blob/main/xl2/repro
- https://github.com/xlnt-community/xlnt/pull/147
- https://github.com/xlnt-community/xlnt/
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