Libreoffice

Heap buffer overflow in LibreOffice Calc's tracked-changes importer allows an attacker who delivers a maliciously crafted spreadsheet to corrupt heap memory, causing high-impact availability loss and potentially enabling arbitrary code execution at the victim's privilege level. The vulnerability is triggered when a document reuses the same change identifier for two structurally different change types, causing the importer to misidentify object size and write past the allocation boundary. A proof-of-concept exists (CVSS 4.0 E:P modifier); no confirmed active exploitation (CISA KEV) has been recorded at time of analysis.

Heap buffer overflow in LibreOffice Calc's formula compiler allows an attacker to trigger an out-of-bounds write by crafting a spreadsheet containing a formula with extreme nesting depth composed of many consecutive opening tokens. The vulnerability stems from an off-by-one allocation error in the nesting-depth tracking array, causing a single-element write past the buffer's end during file parsing. The CVSS 4.0 vector carries an E:P modifier indicating a proof-of-concept exists; no public exploit identified at time of analysis beyond the POC, and the vulnerability is not listed in CISA KEV.

Stack buffer overflow in LibreOffice's legacy binary PPT importer allows a crafted presentation file to corrupt stack memory, causing application crash or potential arbitrary code execution under the victim's user context. The flaw affects all LibreOffice versions when importing PPT files containing a colour-replacement record whose combined colour counts across two parsing passes exceed the fixed-size stack-allocated colour tables. No public exploit has been confirmed actively exploited (not in CISA KEV), though the CVSS 4.0 supplemental E:P metric indicates proof-of-concept code exists, elevating this above a purely theoretical risk.

Heap buffer overflow in LibreOffice's OOXML (DOCX) import component allows a specially crafted document to corrupt memory when processing text box elements, with high availability impact and limited confidentiality and integrity exposure. The flaw stems from a type confusion during deferred parser event replay: a handler object assumed to be a larger type is written to at that type's field layout, but the actual object may be smaller, causing the write to land past the end of the heap allocation. A proof-of-concept exploit exists (CVSS 4.0 E:P); no confirmed active exploitation is recorded in CISA KEV at time of analysis.

Heap buffer overflow in LibreOffice's EMF+ graphics importer enables memory corruption when a user opens a specially crafted document containing a malicious gradient brush. The root cause is an integer overflow in the multiplication used to compute a heap allocation size from an attacker-controlled gradient blend point count - resulting in an undersized buffer that is subsequently written as if it were full-sized. A proof of concept exists (CVSS 4.0 E:P supplemental metric), no confirmed active exploitation is recorded, and impact spans process crash to potential arbitrary code execution within the LibreOffice session.

Heap use-after-free in LibreOffice's ODF number format parser allows memory corruption when a user opens a crafted document containing a malformed number format string. The flaw arises because a position value embedded in the document is consumed without validation against the actual length of the format-code string, causing the parser to reference stale or out-of-bounds heap memory. Publicly available exploit code exists (CVSS 4.0 E:P), and while no active exploitation is confirmed via CISA KEV, the low attack complexity and document-phishing delivery model make this a realistic targeted threat.

Heap buffer overflow in LibreOffice's DXF import engine allows a crafted CAD file to corrupt process memory when a polyline with more than 65,535 points is parsed. The root cause is an integer truncation defect: the point count read from the DXF file is narrowed to a 16-bit value when sizing the heap allocation, but the original, un-truncated count drives the subsequent write loop - any polyline exceeding 65,535 points overflows the undersized buffer. A proof-of-concept exists (CVSS 4.0 E:P), exploitation requires passive user interaction (opening a malicious DXF file), and no active exploitation has been confirmed in CISA KEV at time of analysis.

Improper Verification of Cryptographic Signature vulnerability in LibreOffice allows PDF Signature Spoofing by Improper Validation. Rated low severity (CVSS 2.4), this vulnerability is low attack complexity. No vendor patch available.

An Improper Certificate Validation vulnerability in LibreOffice allowed an attacker to self sign an ODF document, with a signature untrusted by the target, then modify it to change the signature. Rated medium severity (CVSS 5.2), this vulnerability is no authentication required.

LibreOffice supports Office URI Schemes to enable browser integration of LibreOffice with MS SharePoint server. Rated high severity (CVSS 7.2), this vulnerability is no authentication required. No vendor patch available.

Improper Input Validation vulnerability in The Document Foundation LibreOffice allows Windows Executable hyperlink targets to be executed unconditionally on activation.8 before < 24.8.5. Rated high severity (CVSS 7.2), this vulnerability is no authentication required. No vendor patch available.

Exposure of Environmental Variables and arbitrary INI file values to an Unauthorized Actor vulnerability in The Document Foundation LibreOffice. Rated medium severity (CVSS 6.7), this vulnerability is low attack complexity. No vendor patch available.

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in The Document Foundation LibreOffice allows Absolute Path Traversal. Rated low severity (CVSS 2.4), this vulnerability is low attack complexity. No vendor patch available.

Improper Digital Signature Invalidation vulnerability in Zip Repair Mode of The Document Foundation LibreOffice allows Signature forgery vulnerability in LibreOffice2 before < 24.2.5. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Certificate Validation user interface in LibreOffice allows potential vulnerability. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Improper Certificate Validation vulnerability in LibreOffice "LibreOfficeKit" mode disables TLS certification verification LibreOfficeKit can be used for accessing LibreOffice functionality through. Rated critical severity (CVSS 10.0), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Insufficient macro permission validation of The Document Foundation LibreOffice allows an attacker to execute built-in macros without warning. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Improper Input Validation vulnerability in GStreamer integration of The Document Foundation LibreOffice allows an attacker to execute arbitrary GStreamer plugins. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

A flaw was found in the Libreoffice package. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity.

Improper access control in editor components of The Document Foundation LibreOffice allowed an attacker to craft a document that would cause external links to be loaded without prompt. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Improper Validation of Array Index vulnerability in the spreadsheet component of The Document Foundation LibreOffice allows an attacker to craft a spreadsheet document that will cause an array index. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

LibreOffice supports Office URI Schemes to enable browser integration of LibreOffice with MS SharePoint server. Rated medium severity (CVSS 6.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

LibreOffice supports the storage of passwords for web connections in the user’s configuration database. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

LibreOffice supports the storage of passwords for web connections in the user’s configuration database. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

An Improper Certificate Validation vulnerability in LibreOffice existed where determining if a macro was signed by a trusted author was done by only matching the serial number and issuer string of. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.

LibreOffice supports digital signatures of ODF documents and macros within documents, presenting visual aids that no alteration of the document occurred since the last signing and that the signature. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

LibreOffice supports digital signatures of ODF documents and macros within documents, presenting visual aids that no alteration of the document occurred since the last signing and that the signature. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

In the LibreOffice 7-1 series in versions prior to 7.1.2, and in the 7-0 series in versions prior to 7.0.5, the denylist can be circumvented by manipulating the link so it doesn't match the denylist. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

ODF documents can contain forms to be filled out by the user. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

LibreOffice has a 'stealth mode' in which only documents from locations deemed 'trusted' are allowed to retrieve remote resources. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

If LibreOffice has an encrypted document open and crashes, that document is auto-saved encrypted. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

LibreOffice documents can contain macros. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

LibreOffice is typically bundled with LibreLogo, a programmable turtle vector graphics script, which can execute arbitrary python commands contained with the document it is launched from. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

LibreOffice has a feature where documents can specify that pre-installed macros can be executed on various script events such as mouse-over, document-open etc. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

LibreOffice has a feature where documents can specify that pre-installed macros can be executed on various script events such as mouse-over, document-open etc. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity.

LibreOffice is typically bundled with LibreLogo, a programmable turtle vector graphics script, which can execute arbitrary python commands contained with the document it is launched from. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

LibreOffice is typically bundled with LibreLogo, a programmable turtle vector graphics script, which can execute arbitrary python commands contained with the document it is launched from. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

LibreOffice has a 'stealth mode' in which only documents from locations deemed 'trusted' are allowed to retrieve remote resources. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

LibreOffice has a feature where documents can specify that pre-installed scripts can be executed on various document events such as mouse-over, etc. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

A vulnerability in LibreOffice hyperlink processing allows an attacker to construct documents containing hyperlinks pointing to the location of an executable on the target users file system. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

The get_app_path function in desktop/unx/source/start.c in LibreOffice through 6.0.5 mishandles the realpath function in certain environments such as FreeBSD libc, which might allow attackers to. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

An information disclosure vulnerability occurs when LibreOffice 6.0.3 and Apache OpenOffice Writer 4.1.5 automatically process and initiate an SMB connection embedded in a malicious file, as. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

The SwCTBWrapper::Read function in sw/source/filter/ww8/ww8toolbar.cxx in LibreOffice before 5.4.6.1 and 6.x before 6.0.2.1 does not validate a customizations index, which allows remote attackers to. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity.

sot/source/sdstor/stgstrms.cxx in LibreOffice before 5.4.5.1 and 6.x before 6.0.1.1 uses an incorrect integer data type in the StgSmallStrm class, which allows remote attackers to cause a denial of. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.

LibreOffice before 5.4.5 and 6.x before 6.0.1 allows remote attackers to read arbitrary files via =WEBSERVICE calls in a document, which use the COM.MICROSOFT.WEBSERVICE function. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

WP1StylesListener.cpp, WP5StylesListener.cpp, and WP42StylesListener.cpp in libwpd 0.10.1 mishandle iterators, which allows remote attackers to cause a denial of service (heap-based buffer over-read. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Out-of-bounds Read vulnerability could allow attackers to read data from memory outside the intended buffer boundaries.

LibreOffice before 2017-03-17 has an out-of-bounds write caused by a heap-based buffer overflow related to the ReadJPEG function in vcl/source/filter/jpeg/jpegc.cxx. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

LibreOffice before 2017-03-14 has an out-of-bounds write related to the HWPFile::TagsRead function in hwpfilter/source/hwpfile.cxx. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

LibreOffice before 2017-01-02 has an out-of-bounds write caused by a heap-based buffer overflow related to the tools::Polygon::Insert function in tools/source/generic/poly.cxx. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

LibreOffice before 2017-03-11 has an out-of-bounds write caused by a heap-based buffer overflow in the SVMConverter::ImplConvertFromSVM1 function in vcl/source/gdi/svmconverter.cxx. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

LibreOffice before 2016-12-22 has an out-of-bounds write caused by a heap-based buffer overflow related to the EnhWMFReader::ReadEnhWMF function in vcl/source/filter/wmf/enhwmf.cxx. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Use-after-free vulnerability in LibreOffice before 5.1.4 allows remote attackers to execute arbitrary code via a crafted RTF file, related to stylesheet and superscript tokens. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

LibreOffice before 5.0.5 allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via a crafted LwpTocSuperLayout record in a LotusWordPro. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

The lwp filter in LibreOffice before 5.0.4 allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via a crafted LotusWordPro (lwp) document. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

LibreOffice before 4.4.6 and 5.x before 5.0.1 and Apache OpenOffice before 4.1.2 allows remote attackers to cause a denial of service (memory corruption and application crash) or execute arbitrary. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. Epss exploitation probability 35.6% and no vendor patch available.

Integer overflow in LibreOffice before 4.4.5 and Apache OpenOffice before 4.1.2 allows remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. Epss exploitation probability 22.8% and no vendor patch available.

Integer underflow in LibreOffice before 4.4.5 and Apache OpenOffice before 4.1.2, when the configuration setting "Load printer settings with the document" is enabled, allows remote attackers to cause. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. Epss exploitation probability 49.6% and no vendor patch available.

LibreOffice before 4.4.5 and Apache OpenOffice before 4.1.2 uses the stored LinkUpdateMode configuration information in OpenDocument Format files and templates when handling links, which might allow. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable. No vendor patch available.

The HWP filter in LibreOffice before 4.3.7 and 4.4.x before 4.4.2 and Apache OpenOffice before 4.1.2 allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.

LibreOffice before 4.3.5 allows remote attackers to cause a denial of service (invalid write operation and crash) and possibly execute arbitrary code via a crafted RTF file. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Use-after-free vulnerability in the socket manager of Impress Remote in LibreOffice 4.x before 4.2.7 and 4.3.x before 4.3.3 allows remote attackers to cause a denial of service (crash) or possibly. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, low attack complexity.

The OLE preview generation in Apache OpenOffice before 4.1.1 and OpenOffice.org (OOo) might allow remote attackers to embed arbitrary data into documents via crafted OLE objects. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable. No vendor patch available.

Apache OpenOffice before 4.1.1 allows remote attackers to execute arbitrary commands and possibly have other unspecified impact via a crafted Calc spreadsheet. Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable. Epss exploitation probability 10.7% and no vendor patch available.

LibreOffice 4.2.4 executes unspecified VBA macros automatically, which has unspecified impact and attack vectors, possibly related to doc/docmacromode.cxx. Rated critical severity (CVSS 10.0), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

LibreOffice 3.5.x before 3.5.7.2 and 3.6.x before 3.6.1, and OpenOffice.org (OOo), allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted (1) odt file to. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable. No vendor patch available.

Multiple heap-based buffer overflows in the XML manifest encryption tag parsing functionality in OpenOffice.org and LibreOffice before 3.5.5 allow remote attackers to cause a denial of service and. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Integer overflow in the vclmi.dll module in OpenOffice.org (OOo) 3.3, 3.4 Beta, and possibly earlier, and LibreOffice before 3.5.3, allows remote attackers to cause a denial of service (application. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, low attack complexity.

Integer overflow in filter/source/msfilter/msdffimp.cxx in OpenOffice.org (OOo) 3.3, 3.4 Beta, and possibly earlier, and LibreOffice before 3.5.3, allows remote attackers to cause a denial of service. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. Public exploit code available and no vendor patch available.

Redland Raptor (aka libraptor) before 2.0.7, as used by OpenOffice 3.3 and 3.4 Beta, LibreOffice before 3.4.6 and 3.5.x before 3.5.1, and other products, allows user-assisted remote attackers to read. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.