Astra Linux – Vulnerability in Firefox

The length of the certificate was not properly checked when it was added to the certificate store. In practice, only trusted data was processed. This vulnerability was fixed in Firefox 135, Firefox ESR 128.7, Thunderbird 128.7, and Thunderbird 135...

Astra Linux – Vulnerability in Thunderbird

Thunderbird’s handling of the X-Mozilla-External-Attachment-URL header can be exploited to execute JavaScript in the file:/// context. By creating a nested email attachment message/rfc822 and setting its content type to application/pdf, Thunderbird may incorrectly render it as HTML when opened,...

Astra Linux – Vulnerability in Thunderbird

Thunderbird parses addresses in a way that can allow sender spoofing in cases where the server allows an invalid From address to be used. For example, if the From header contains an invalid value like “Spoofed Name”, Thunderbird will treat “[email protected]” as the actual address. This...

Astra Linux – Vulnerability in Thunderbird

The Thunderbird Address Book’s URI fields contained unsanitized links. Attackers could use these links to create and export an address book containing malicious payloads in certain fields. For example, in the “Other” field of the Instant Messaging section. If another user imported the address boo...

Astra Linux – Vulnerability in Firefox

jar: URLs retrieve the content of local files that are packaged in ZIP archives. The null character and everything after it were ignored when retrieving the content from the archive. However, the fake extension after the null character was used to determine the type of content. This could have be...

Astra Linux – Vulnerability in Firefox, Thunderbird

A clickjacking vulnerability could have been exploited to trick users into revealing their saved payment card details to a malicious page. This vulnerability has been fixed in Firefox 139, Firefox ESR 128.11, Thunderbird 139, and Thunderbird 128.11...

Astra Linux – Vulnerability in Firefox

When Multi-Account Containers was enabled, DNS requests could bypass a SOCKS proxy when the domain name was invalid or the SOCKS proxy was not responding. This vulnerability was fixed in Firefox 140 and Thunderbird 140...

Astra Linux – Vulnerability in Firefox

Due to insufficient escaping of special characters in the “copy as cURL” feature, an attacker could trick a user into using this command, potentially leading to local code execution on the user’s system. This vulnerability was fixed in Firefox 138 and Thunderbird 138...

TencentOS Server 4: firefox (TSSA-2024:1058)

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2024:1058 advisory. Package updates are available for TencentOS Server 4 that fix the following vulnerabilities...

Fedora 42 : thunderbird (2025-1ac9269cc4)

The remote Fedora 42 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2025-1ac9269cc4 advisory. Update to 128.11.1 https://www.mozilla.org/en-US/security/advisories/mfsa2025-49/ Tenable has extracted the preceding description block directly from the...

DEBIAN-CVE-2025-5986

A crafted HTML email using mailbox:/// links can trigger automatic, unsolicited downloads of .pdf files to the user's desktop or home directory without prompting, even if auto-saving is disabled. This behavior can be abused to fill the disk with garbage data e.g. using /dev/urandom on Linux or to...

CVE-2025-5986

CVE-2025-5986 affects Thunderbird. A crafted HTML email that uses mailbox:/// links can trigger automatic, unsolicited downloads of PDF files to the user’s desktop or home directory without prompting, even if auto-saving is disabled. This can lead to disk-space exhaustion and potential credential...

CVE-2025-5986

A crafted HTML email using mailbox:/// links can trigger automatic, unsolicited downloads of .pdf files to the user's desktop or home directory without prompting, even if auto-saving is disabled. This behavior can be abused to fill the disk with garbage data e.g. using /dev/urandom on Linux or to...

The vulnerability of the Update Handler component in Mozilla Firefox, Mozilla Firefox ESR, and the Mozilla Thunderbird email client allows a hacker to escalate their privileges.

The vulnerability of the Update Handler component in Mozilla Firefox, Mozilla Firefox ESR, and the email client Mozilla Thunderbird is related to access control deficiencies. Exploiting this vulnerability can allow an attacker to enhance their privileges remotely...

Mozilla Thunderbird < 139.0.2

The version of Thunderbird installed on the remote macOS or Mac OS X host is prior to 139.0.2. It is, therefore, affected by a vulnerability as referenced in the mfsa2025-50 advisory. - A crafted HTML email using mailbox:/// links can trigger automatic, unsolicited downloads of .pdf files to the...

Mozilla Thunderbird < 128.11.1

The version of Thunderbird installed on the remote Windows host is prior to 128.11.1. It is, therefore, affected by a vulnerability as referenced in the mfsa2025-49 advisory. - A crafted HTML email using mailbox:/// links can trigger automatic, unsolicited downloads of .pdf files to the user's...

Mozilla Thunderbird < 139.0.2

The version of Thunderbird installed on the remote Windows host is prior to 139.0.2. It is, therefore, affected by a vulnerability as referenced in the mfsa2025-50 advisory. - A crafted HTML email using mailbox:/// links can trigger automatic, unsolicited downloads of .pdf files to the user's...

The vulnerability of the Thunderbird email client, related to incorrect restrictions on the path to the restricted catalog, allows attackers to disclose protected information.

The vulnerability of the Thunderbird email client is related to incorrect restrictions on the path to the restricted catalog. Exploiting this vulnerability can allow a malicious actor, operating remotely, to disclose protected information...

CVE-2025-5272

Memory safety bugs present in Firefox 138 and Thunderbird 138. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 139 and Thunderbird 139...

CVE-2025-5268

Memory safety bugs present in Firefox 138, Thunderbird 138, Firefox ESR 128.10, and Thunderbird 128.10. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in...