7.8
CVE-2026-3463
- EPSS 0.2%
- Veröffentlicht 03.03.2026 12:02:10
- Zuletzt bearbeitet 29.04.2026 01:00:01
- Quelle cna@vuldb.com
- CVE-Watchlists
- Unerledigt
Loginxlnt-community xlnt Compound Document binary.hpp append heap-based overflow
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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Xlnt-community ≫ Xlnt Version <= 1.6.1
| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.2% | 0.092 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| nvd@nist.gov | 7.8 | 1.8 | 5.9 |
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
|
| cna@vuldb.com | 1.9 | 0 | 0 |
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
|
| cna@vuldb.com | 3.3 | 1.8 | 1.4 |
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
|
| cna@vuldb.com | 1.7 | 3.1 | 2.9 |
AV:L/AC:L/Au:S/C:N/I:N/A:P
|
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
CWE-122 Heap-based Buffer Overflow
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
https://github.com/xlnt-community/xlnt/
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