| CVE-2026-26825 | MEDIO5.3 | A use-of-uninitialized memory vulnerability exists in libxls 1.6.3 when parsing malformed XLS files. The issue is reachable via xls_parseWorkBook() and is triggered by uninitialized heap memory originating from the OLE layer (ole2_read). The flaw is detectable with MemorySanitizer (MSAN) and can lead to undefined behav | 03/06/2026 |
| CVE-2026-26824 | MEDIO6.5 | libxls through version 1.6.3 contains a use of uninitialized memory vulnerability in the OLE container parser. Memory allocated for the Master Sector Allocation Table (MSAT) in read_MSAT() is not fully initialized before being consumed by ole2_validate_sector_chain(), which may result in application crashes or potentia | 03/06/2026 |
| CVE-2023-38856 | MEDIO6.5 | Buffer Overflow vulnerability in libxlsv.1.6.2 allows a remote attacker to execute arbitrary code and cause a denial of service via a crafted XLS file to the get_string function in xlstool.c:411. | 15/08/2023 |
| CVE-2023-38855 | MEDIO6.5 | Buffer Overflow vulnerability in libxlsv.1.6.2 allows a remote attacker to execute arbitrary code and cause a denial of service via a crafted XLS file to the get_string function in xlstool.c:395. | 15/08/2023 |
| CVE-2023-38854 | MEDIO6.5 | Buffer Overflow vulnerability in libxlsv.1.6.2 allows a remote attacker to execute arbitrary code and cause a denial of service via a crafted XLS file to the transcode_latin1_to_utf8 function in xlstool.c:296. | 15/08/2023 |
| CVE-2023-38853 | MEDIO6.5 | Buffer Overflow vulnerability in libxlsv.1.6.2 allows a remote attacker to execute arbitrary code and cause a denial of service via a crafted XLS file to the xls_parseWorkBook function in xls.c:1015. | 15/08/2023 |
| CVE-2023-38852 | MEDIO6.5 | Buffer Overflow vulnerability in libxlsv.1.6.2 allows a remote attacker to execute arbitrary code and cause a denial of service via a crafted XLS file to the unicode_decode_wcstombs function in xlstool.c:266. | 15/08/2023 |
| CVE-2023-38851 | MEDIO6.5 | Buffer Overflow vulnerability in libxlsv.1.6.2 allows a remote attacker to execute arbitrary code and cause a denial of service via a crafted XLS file to the xls_parseWorkBook function in xls.c:1018. | 15/08/2023 |
| CVE-2021-27836 | MEDIO6.5 | An issue was discoverered in in function xls_getWorkSheet in xls.c in libxls 1.6.2, allows attackers to cause a denial of service, via a crafted XLS file. | 03/11/2021 |
| CVE-2020-27819 | MEDIO5.5 | An issue was discovered in libxls before and including 1.6.1 when reading Microsoft Excel files. A NULL pointer dereference vulnerability exists when parsing XLS cells in libxls/xls2csv.c:199. It could allow a remote attacker to cause a denial of service via crafted XLS file. | 23/02/2021 |
| CVE-2017-2910 | ALTO8.8 | An exploitable Out-of-bounds Write vulnerability exists in the xls_addCell function of libxls 2.0. A specially crafted xls file can cause a memory corruption resulting in remote code execution. An attacker can send malicious xls file to trigger this vulnerability. | 02/12/2020 |
| CVE-2018-20452 | ALTO8.8 | The read_MSAT_body function in ole.c in libxls 1.4.0 has an invalid free that allows attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted file, because of inconsistent memory management (new versus free) in ole2_read_header in ole.c. | 25/12/2018 |
| CVE-2018-20450 | MEDIO6.5 | The read_MSAT function in ole.c in libxls 1.4.0 has a double free that allows attackers to cause a denial of service (application crash) via a crafted file, a different vulnerability than CVE-2017-2897. | 25/12/2018 |
| CVE-2017-12109 | ALTO8.8 | An exploitable integer overflow vulnerability exists in the xls_preparseWorkSheet function of libxls 1.4 when handling a MULRK record. A specially crafted XLS file can cause a memory corruption resulting in remote code execution. An attacker can send malicious XLS file to trigger this vulnerability. | 24/04/2018 |
| CVE-2017-12108 | ALTO8.8 | An exploitable integer overflow vulnerability exists in the xls_preparseWorkSheet function of libxls 1.4 when handling a MULBLANK record. A specially crafted XLS file can cause a memory corruption resulting in remote code execution. An attacker can send malicious XLS file to trigger this vulnerability. | 24/04/2018 |
| CVE-2017-2919 | ALTO7.8 | An exploitable stack based buffer overflow vulnerability exists in the xls_getfcell function of libxls 1.3.4. A specially crafted XLS file can cause a memory corruption resulting in remote code execution. An attacker can send malicious XLS file to trigger this vulnerability | 20/11/2017 |
| CVE-2017-2897 | ALTO7.8 | An exploitable out-of-bounds write vulnerability exists in the read_MSAT function of libxls 1.4. A specially crafted XLS file can cause a memory corruption resulting in remote code execution. An attacker can send malicious XLS file to trigger this vulnerability. | 20/11/2017 |
| CVE-2017-2896 | ALTO7.8 | An exploitable out-of-bounds write vulnerability exists in the xls_mergedCells function of libxls 1.4. . A specially crafted XLS file can cause a memory corruption resulting in remote code execution. An attacker can send malicious XLS file to trigger this vulnerability. | 20/11/2017 |
| CVE-2017-12111 | ALTO7.8 | An exploitable out-of-bounds vulnerability exists in the xls_addCell function of libxls 1.4. A specially crafted XLS file with a formula record can cause memory corruption resulting in remote code execution. An attacker can send a malicious XLS file to trigger this vulnerability. | 20/11/2017 |
| CVE-2017-12110 | ALTO7.8 | An exploitable integer overflow vulnerability exists in the xls_appendSST function of libxls 1.4.A specially crafted XLS file can cause memory corruption resulting in remote code execution. | 20/11/2017 |