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20 vulnerabilities by libxls_project

CVE-2026-26825 (GCVE-0-2026-26825)

Vulnerability from cvelistv5 – Published: 2026-06-03 00:00 – Updated: 2026-06-08 16:41
VLAI
Summary
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 behavior, incorrect parsing logic, or potential information disclosure.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • n/a
  • CWE-908 - Use of Uninitialized Resource
Assigner
References
Show details on NVD website

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CVE-2026-26824 (GCVE-0-2026-26824)

Vulnerability from cvelistv5 – Published: 2026-06-03 00:00 – Updated: 2026-06-04 12:25
VLAI
Summary
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 potential information disclosure when processing a crafted XLS file
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • n/a
  • CWE-457 - Use of Uninitialized Variable
Assigner
References
Show details on NVD website

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CVE-2023-38853 (GCVE-0-2023-38853)

Vulnerability from cvelistv5 – Published: 2023-08-15 00:00 – Updated: 2024-10-08 20:40
VLAI
Summary
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.
Severity
No CVSS data available.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • n/a
Assigner
References
Show details on NVD website

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CVE-2023-38856 (GCVE-0-2023-38856)

Vulnerability from cvelistv5 – Published: 2023-08-15 00:00 – Updated: 2024-10-08 20:37
VLAI
Summary
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.
Severity
No CVSS data available.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • n/a
Assigner
References
Show details on NVD website

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CVE-2023-38855 (GCVE-0-2023-38855)

Vulnerability from cvelistv5 – Published: 2023-08-15 00:00 – Updated: 2024-10-08 20:38
VLAI
Summary
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.
Severity
No CVSS data available.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • n/a
Assigner
References
Show details on NVD website

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CVE-2023-38851 (GCVE-0-2023-38851)

Vulnerability from cvelistv5 – Published: 2023-08-15 00:00 – Updated: 2024-10-08 20:41
VLAI
Summary
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.
Severity
No CVSS data available.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • n/a
Assigner
References
Show details on NVD website

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CVE-2023-38852 (GCVE-0-2023-38852)

Vulnerability from cvelistv5 – Published: 2023-08-15 00:00 – Updated: 2025-11-04 22:04
VLAI
Summary
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.
Severity
No CVSS data available.
CWE
  • n/a
Assigner
Show details on NVD website

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CVE-2023-38854 (GCVE-0-2023-38854)

Vulnerability from cvelistv5 – Published: 2023-08-15 00:00 – Updated: 2024-10-08 20:39
VLAI
Summary
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.
Severity
No CVSS data available.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • n/a
Assigner
References
Show details on NVD website

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CVE-2021-27836 (GCVE-0-2021-27836)

Vulnerability from cvelistv5 – Published: 2021-11-03 16:07 – Updated: 2024-08-03 21:33
VLAI
Summary
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.
Severity
No CVSS data available.
CWE
  • n/a
Assigner
References
URL Tags
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https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
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https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
Show details on NVD website

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CVE-2020-27819 (GCVE-0-2020-27819)

Vulnerability from cvelistv5 – Published: 2021-02-23 03:40 – Updated: 2024-08-04 16:25
VLAI
Summary
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.
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a libxls Affected: libxls before 1.6.2
Show details on NVD website

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CVE-2017-2910 (GCVE-0-2017-2910)

Vulnerability from cvelistv5 – Published: 2020-12-02 17:26 – Updated: 2024-08-05 14:09
VLAI
Summary
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.
Severity
No CVSS data available.
CWE
  • out of bounds write
Assigner
References
Impacted products
Vendor Product Version
n/a libxls Affected: libxls 2.0
Show details on NVD website

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CVE-2018-20452 (GCVE-0-2018-20452)

Vulnerability from cvelistv5 – Published: 2018-12-25 17:00 – Updated: 2024-08-05 11:58
VLAI
Summary
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.
Severity
No CVSS data available.
CWE
  • n/a
Assigner
References
URL Tags
https://github.com/evanmiller/libxls/issues/35 x_refsource_MISC
https://security.gentoo.org/glsa/202003-64 vendor-advisoryx_refsource_GENTOO
Date Public
2018-12-25 00:00
Show details on NVD website

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CVE-2018-20450 (GCVE-0-2018-20450)

Vulnerability from cvelistv5 – Published: 2018-12-25 17:00 – Updated: 2024-08-05 11:58
VLAI
Summary
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.
Severity
No CVSS data available.
CWE
  • n/a
Assigner
References
URL Tags
https://github.com/evanmiller/libxls/issues/34 x_refsource_MISC
https://security.gentoo.org/glsa/202003-64 vendor-advisoryx_refsource_GENTOO
Date Public
2018-12-25 00:00
Show details on NVD website

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CVE-2017-12109 (GCVE-0-2017-12109)

Vulnerability from cvelistv5 – Published: 2018-04-24 19:00 – Updated: 2024-09-16 16:22
VLAI
Summary
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.
CWE
  • remote code execution
Assigner
References
Impacted products
Vendor Product Version
libxls libxls Affected: 1.4 readxl package 1.0.0 for R (tested using Microsoft R 4.3.1)
Create a notification for this product.
Date Public
2017-11-15 00:00
Show details on NVD website

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CVE-2017-12108 (GCVE-0-2017-12108)

Vulnerability from cvelistv5 – Published: 2018-04-24 19:00 – Updated: 2024-09-17 00:51
VLAI
Summary
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.
CWE
  • remote code execution
Assigner
References
Impacted products
Vendor Product Version
libxls libxls Affected: 1.4 readxl package 1.0.0 for R (tested using Microsoft R 4.3.1)
Create a notification for this product.
Date Public
2017-11-15 00:00
Show details on NVD website

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CVE-2017-12111 (GCVE-0-2017-12111)

Vulnerability from cvelistv5 – Published: 2017-11-20 22:00 – Updated: 2024-09-16 18:19
VLAI
Summary
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.
CWE
  • remote code execution
Assigner
References
URL Tags
https://www.debian.org/security/2018/dsa-4173 vendor-advisoryx_refsource_DEBIAN
https://security.gentoo.org/glsa/202003-64 vendor-advisoryx_refsource_GENTOO
https://www.talosintelligence.com/vulnerability_r… x_refsource_MISC
Impacted products
Vendor Product Version
libxls libxls Affected: 1.4
Create a notification for this product.
Date Public
2017-11-20 00:00
Show details on NVD website

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CVE-2017-2897 (GCVE-0-2017-2897)

Vulnerability from cvelistv5 – Published: 2017-11-20 22:00 – Updated: 2024-09-16 20:17
VLAI
Summary
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.
CWE
  • remote code execution
Assigner
References
URL Tags
https://www.debian.org/security/2018/dsa-4173 vendor-advisoryx_refsource_DEBIAN
https://security.gentoo.org/glsa/202003-64 vendor-advisoryx_refsource_GENTOO
https://www.talosintelligence.com/vulnerability_r… x_refsource_MISC
Impacted products
Vendor Product Version
libxls libxls Affected: 1.4
Create a notification for this product.
Date Public
2017-11-20 00:00
Show details on NVD website

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CVE-2017-12110 (GCVE-0-2017-12110)

Vulnerability from cvelistv5 – Published: 2017-11-20 22:00 – Updated: 2024-09-17 00:11
VLAI
Summary
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.
CWE
  • remote code execution
Assigner
References
URL Tags
https://www.debian.org/security/2018/dsa-4173 vendor-advisoryx_refsource_DEBIAN
https://security.gentoo.org/glsa/202003-64 vendor-advisoryx_refsource_GENTOO
https://www.talosintelligence.com/vulnerability_r… x_refsource_MISC
Impacted products
Vendor Product Version
libxls libxls Affected: 1.4
Create a notification for this product.
Date Public
2017-11-20 00:00
Show details on NVD website

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CVE-2017-2896 (GCVE-0-2017-2896)

Vulnerability from cvelistv5 – Published: 2017-11-20 22:00 – Updated: 2024-09-16 23:50
VLAI
Summary
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.
CWE
  • remote code execution
Assigner
References
URL Tags
https://www.debian.org/security/2018/dsa-4173 vendor-advisoryx_refsource_DEBIAN
https://security.gentoo.org/glsa/202003-64 vendor-advisoryx_refsource_GENTOO
https://www.talosintelligence.com/vulnerability_r… x_refsource_MISC
Impacted products
Vendor Product Version
libxls libxls Affected: 1.4
Create a notification for this product.
Date Public
2017-11-20 00:00
Show details on NVD website

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CVE-2017-2919 (GCVE-0-2017-2919)

Vulnerability from cvelistv5 – Published: 2017-11-20 22:00 – Updated: 2024-09-17 00:01
VLAI
Summary
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
CWE
  • remote code execution
Assigner
References
URL Tags
https://www.debian.org/security/2018/dsa-4173 vendor-advisoryx_refsource_DEBIAN
https://security.gentoo.org/glsa/202003-64 vendor-advisoryx_refsource_GENTOO
https://www.talosintelligence.com/vulnerability_r… x_refsource_MISC
Impacted products
Vendor Product Version
libxls libxls Affected: 1.3.4
Create a notification for this product.
Date Public
2017-11-20 00:00
Show details on NVD website

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