INFSA-2025:12188: thunderbird security update

Information about definition

Identificator: INFSA-2025:12188

Type: security

Release date: 2025-07-31 15:58:20 UTC

Information about package

Mozilla Thunderbird is a standalone mail and newsgroup client.

Vulnerabilities description

  • CVE-2025-8027

    Mozilla Firefox could allow a remote attacker to obtain sensitive information. The JavaScript engine only wrote partial return value to stack. By persuading a victim to visit a specially crafted Web site, a remote attacker could exploit this vulnerability to obtain sensitive information.

  • CVE-2025-8028

    A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: On arm64, a WASM br_table instruction with a large number of entries could lead to the label being too far from the instruction, causing truncation and incorrect computation of the branch address.

  • CVE-2025-8029

    A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Firefox executed javascript: URLs when used in object and embed tags.

  • CVE-2025-8030

    Mozilla Firefox could allow a remote attacker to execute arbitrary code on the system, caused by insufficient escaping in the “Copy as cURL” feature. By persuading a victim to visit a specially crafted Web site, a remote attacker could exploit this vulnerability using unknown attack vectors to execute arbitrary code on the vulnerable system or cause a denial of service.

  • CVE-2025-8031

    Mozilla Firefox could allow a remote attacker to bypass security restrictions, caused by incorrect URL stripping in CSP reports. By persuading a victim to visit a specially crafted Web site, a remote attacker could exploit this vulnerability to bypass security restrictions.

  • CVE-2025-8032

    Mozilla Firefox could allow a remote attacker to bypass security restrictions. The XSLT document loading did not correctly propagate the source document which bypassed its CSP. By persuading a victim to visit a specially crafted Web site, a remote attacker could exploit this vulnerability to bypass security restrictions.

  • CVE-2025-8033

    Mozilla Firefox is vulnerable to a denial of service, caused by the incorrect JavaScript state machine for generators. By persuading a victim to visit a specially crafted Web site, a remote attacker could exploit this vulnerability to trigger a NULL pointer dereference error.

  • CVE-2025-8034

    Mozilla Firefox could allow a remote attacker to execute arbitrary code on the system, caused by memory safety bugs within the browser engine. By persuading a victim to visit a specially-crafted Web site, a remote attacker could exploit this vulnerability using unknown attack vectors to execute arbitrary code on the vulnerable system or cause a denial of service.

  • CVE-2025-8035

    Mozilla Firefox could allow a remote attacker to execute arbitrary code on the system, caused by memory safety bugs within the browser engine. By persuading a victim to visit a specially-crafted Web site, a remote attacker could exploit this vulnerability using unknown attack vectors to execute arbitrary code on the vulnerable system or cause a denial of service.

Severity level

CVE Score CVSS 2.0 Score CVSS 3.x Score CVSS 4.0
NIST — CVE-2025-8027
no information 7.5 no information
NIST — CVE-2025-8028
no information 7.5 no information
NIST — CVE-2025-8029
no information 6.1 no information
NIST — CVE-2025-8030
no information 6.1 no information
NIST — CVE-2025-8031
no information 6.1 no information
NIST — CVE-2025-8032
no information 6.1 no information
NIST — CVE-2025-8033
no information 3.4 no information
NIST — CVE-2025-8034
no information 7.5 no information
NIST — CVE-2025-8035
no information 7.5 no information
Critical, important, moderate, low

Updated packages