Alertas de Seguridad de la Información

F Alto vulnerabilidad

08/07/2026

[CVE-2026-57254] There is an abnormal annotation within the PDF that is referenced by other objects. When the applica…

There is an abnormal annotation within the PDF that is referenced by other objects. When the application parses the PDF, it fails to perform proper type checking, ultimately causing the application to crash.

nvdaltovulnerabilidad CVSS 7.8 NVD

F Alto vulnerabilidad

08/07/2026

[CVE-2026-57256] When the application opens a PDF and executes JavaScript, it performs abnormal operations on the lis…

When the application opens a PDF and executes JavaScript, it performs abnormal operations on the list box field, and this operation is repeated after the form is reset. During this process, the application failed to adequately verify the validity of the form objects and their internal dictionary pointers, resulting in accessing internal members of invalid or improperly initialized fields. This led…

nvdaltovulnerabilidad CVSS 7.8 NVD

F Alto vulnerabilidad

08/07/2026

[CVE-2026-57242] The application opens the PDF, and JavaScript modifies the form. However, the related objects on the…

The application opens the PDF, and JavaScript modifies the form. However, the related objects on the page lack complete lifecycle management and null value validation; when the page state changes, the application continuously dereferences invalid objects, eventually leading to a crash.

nvdaltovulnerabilidad CVSS 7.8 NVD

F Alto vulnerabilidad

08/07/2026

[CVE-2026-57244] After JavaScript resetting the form, the synchronization process lacks re-entry protection and objec…

After JavaScript resetting the form, the synchronization process lacks re-entry protection and object lifecycle verification, resulting in the failure of the control pointer during the traversal process. After the pointer fails, it still continues to dereference, causing the application to crash.

nvdaltovulnerabilidad CVSS 7.8 NVD

F Alto vulnerabilidad

08/07/2026

[CVE-2026-57245] When the application opens a PDF, traverses and builds the annotation elements related to hyperlinks…

When the application opens a PDF, traverses and builds the annotation elements related to hyperlinks, it fails to validate the abnormal annotation relationships and field combinations. This results in the internal objects entering an invalid state. Eventually, during the destruction phase, an invalid pointer write occurred, causing the application to crash.

nvdaltovulnerabilidad CVSS 7.8 NVD

F Alto vulnerabilidad

08/07/2026

[CVE-2026-57246] When dealing with abnormally constructed objects, there is a lack of argument validation; JavaScript…

When dealing with abnormally constructed objects, there is a lack of argument validation; JavaScript triggers signature verification, but the signature plugin does not perform validation when copying the abnormal string, causing the application to crash.

nvdaltovulnerabilidad CVSS 7.8 NVD

F Alto vulnerabilidad

08/07/2026

[CVE-2026-57247] The application re-enters the document structure via field processing and deletes the current page, …

The application re-enters the document structure via field processing and deletes the current page, and then continues using the field objects obtained before deletion, triggering an illegal read and crashing.

nvdaltovulnerabilidad CVSS 7.8 NVD

F Alto vulnerabilidad

08/07/2026

[CVE-2026-57248] When the application opens a PDF file and JavaScript writes annotation attributes, there is a lack o…

When the application opens a PDF file and JavaScript writes annotation attributes, there is a lack of sufficient object type and argument checks. As a result, due to the damage to the internal structure of the annotations, it causes the application to crash during subsequent release.

nvdaltovulnerabilidad CVSS 7.8 NVD

F Alto vulnerabilidad

08/07/2026

[CVE-2026-57249] After the application opened the PDF file, the script first reset the annotation status, then trigge…

After the application opened the PDF file, the script first reset the annotation status, then triggered the reset form event by additional action. During the re-entry process, the application access invalid objects and crashed.

nvdaltovulnerabilidad CVSS 7.8 NVD

F Alto vulnerabilidad

08/07/2026

[CVE-2026-57237] When the application opens a PDF and JavaScript modifies the properties of form fields, it causes th…

When the application opens a PDF and JavaScript modifies the properties of form fields, it causes the state of the underlying objects referenced by the program to become invalid. Eventually, it reads an illegal memory address, which leads to the crash of the application.

nvdaltovulnerabilidad CVSS 7.8 NVD

F Alto vulnerabilidad

08/07/2026

[CVE-2026-57238] After the application opened the PDF, JavaScript deleted the form field object. Subsequently, it att…

After the application opened the PDF, JavaScript deleted the form field object. Subsequently, it attempted to access the invalid object, which caused the application to crash.

nvdaltovulnerabilidad CVSS 7.8 NVD

F Alto vulnerabilidad

08/07/2026

[CVE-2026-57239] The user-controllable executable files will be directly executed by high-privilege processes, allowi…

The user-controllable executable files will be directly executed by high-privilege processes, allowing low-privilege users to have the opportunity to elevate their privileges to NT AUTHORITY\SYSTEM.

nvdaltovulnerabilidad CVSS 8.2 NVD

F Alto vulnerabilidad

08/07/2026

[CVE-2026-57240] When the application opens a PDF file and JavaScript deletes the PDF fields, the subsequent logic st…

When the application opens a PDF file and JavaScript deletes the PDF fields, the subsequent logic still uses the old field pointers, resulting in invalid pointer references and causing the application to crash.

nvdaltovulnerabilidad CVSS 7.8 NVD

X Alto vulnerabilidad

08/07/2026

[CVE-2026-56001] A heap buffer overflow in BitmapScaleBitmaps in libXfont2 before 2.0.8 due to an overflowing 32bit s…

A heap buffer overflow in BitmapScaleBitmaps in libXfont2 before 2.0.8 due to an overflowing 32bit size could be used by attackers able to access the X Server to execute code within the X server cont

nvdaltovulnerabilidad CVSS 8.5 NVD

F Alto vulnerabilidad

08/07/2026

[CVE-2026-13126] The embedded JavaScript in the PDF deleted the pages, making the object invalid. The application att…

The embedded JavaScript in the PDF deleted the pages, making the object invalid. The application attempted to perform a write operation on the invalid pop-up annotations, resulting in the program crashing.

nvdaltovulnerabilidad CVSS 7.8 NVD

F Alto vulnerabilidad

08/07/2026

[CVE-2026-13127] The application opens the PDF file. JavaScript then rewrites the document to modify the page structu…

The application opens the PDF file. JavaScript then rewrites the document to modify the page structure, resulting in the invalidation of the page objects. However, the thumbnails still use the invalid page objects, ultimately causing the application to crash.

nvdaltovulnerabilidad CVSS 7.8 NVD

F Alto vulnerabilidad

08/07/2026

[CVE-2026-13128] Embedding JavaScript within a PDF file will cause the page to be deleted. Subsequent scripts will co…

Embedding JavaScript within a PDF file will cause the page to be deleted. Subsequent scripts will continue to access the relevant properties of the document view, eventually leading to the crash of the application.

nvdaltovulnerabilidad CVSS 7.8 NVD

F Alto vulnerabilidad

08/07/2026

[CVE-2026-13129] When the application opens a PDF file, JavaScript uses the damaged field tree to trigger field trave…

When the application opens a PDF file, JavaScript uses the damaged field tree to trigger field traversal, resulting in the program holding an invalid form object when accessing the field property path. Eventually, the application crashes due to reading an invalid pointer.

nvdaltovulnerabilidad CVSS 7.8 NVD

X Alto vulnerabilidad

08/07/2026

[CVE-2026-55999] Local attackers with a X connection able to provide PCX fonts to the X server xorg-server before 21…

Local attackers with a X connection able to provide PCX fonts to the X server xorg-server before 21.2.24 and xwayland before 24.1.13 could cause a heap buffer overflow via SetFont due to missing glyph boundary checks.

nvdaltovulnerabilidad CVSS 8.5 NVD

X Alto vulnerabilidad

08/07/2026

[CVE-2026-56000] Local attackers with a X connection able to provide GLX commit to the X server xorg-server before 21…

Local attackers with a X connection able to provide GLX commit to the X server xorg-server before 21.2.24 and xwayland before 24.1.13 could cause a Heap Use After Free, due to CommonMakeCurrent() pointing into potentially reallocated memory.

nvdaltovulnerabilidad CVSS 7.8 NVD