Vulnerabilities

With the aim of informing, warning and helping professionals with the latest security vulnerabilities in technology systems, we have made a database available for users interested in this information, which is in Spanish and includes all of the latest documented and recognised vulnerabilities.

This repository, with over 75,000 registers, is based on the information from the NVD (National Vulnerability Database) – by virtue of a partnership agreement – through which INCIBE translates the included information into Spanish.

On occasions this list will show vulnerabilities that have still not been translated, as they are added while the INCIBE team is still carrying out the translation process. The CVE  (Common Vulnerabilities and Exposures) Standard for Information Security Vulnerability Names is used with the aim to support the exchange of information between different tools and databases.

All vulnerabilities collected are linked to different information sources, as well as available patches or solutions provided by manufacturers and developers. It is possible to carry out advanced searches, as there is the option to select different criteria to narrow down the results, some examples being vulnerability types, manufacturers and impact levels, among others.

Through RSS feeds or Newsletters we can be informed daily about the latest vulnerabilities added to the repository. Below there is a list, updated daily, where you can discover the latest vulnerabilities.

CVE-2026-8964

Publication date:
19/05/2026
Spoofing issue in the Popup Blocker component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
Severity CVSS v4.0: Pending analysis
Last modification:
20/05/2026

CVE-2026-8963

Publication date:
19/05/2026
Spoofing issue in the Web Speech component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
Severity CVSS v4.0: Pending analysis
Last modification:
20/05/2026

CVE-2026-8958

Publication date:
19/05/2026
Information disclosure, sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
Severity CVSS v4.0: Pending analysis
Last modification:
20/05/2026

CVE-2026-8957

Publication date:
19/05/2026
Privilege escalation in the Enterprise Policies component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
Severity CVSS v4.0: Pending analysis
Last modification:
20/05/2026

CVE-2026-8965

Publication date:
19/05/2026
Information disclosure in the DOM: Security component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
Severity CVSS v4.0: Pending analysis
Last modification:
20/05/2026

CVE-2026-8962

Publication date:
19/05/2026
Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
Severity CVSS v4.0: Pending analysis
Last modification:
20/05/2026

CVE-2026-8961

Publication date:
19/05/2026
Spoofing issue in the Form Autofill component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
Severity CVSS v4.0: Pending analysis
Last modification:
20/05/2026

CVE-2026-8956

Publication date:
19/05/2026
Integer overflow in the Networking: JAR component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
Severity CVSS v4.0: Pending analysis
Last modification:
20/05/2026

CVE-2026-8951

Publication date:
19/05/2026
Spoofing issue in the Toolbar component in Firefox for Android. This vulnerability was fixed in Firefox 151.
Severity CVSS v4.0: Pending analysis
Last modification:
20/05/2026

CVE-2026-8949

Publication date:
19/05/2026
Integer overflow in the Widget: Win32 component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
Severity CVSS v4.0: Pending analysis
Last modification:
20/05/2026

CVE-2026-8950

Publication date:
19/05/2026
Same-origin policy bypass in the Networking: HTTP component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
Severity CVSS v4.0: Pending analysis
Last modification:
20/05/2026

CVE-2026-8952

Publication date:
19/05/2026
Privilege escalation in the Application Update component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
Severity CVSS v4.0: Pending analysis
Last modification:
20/05/2026