CVSS: 5.9EPSS: %CPEs: 8EXPL: 0CVE-2024-33861
https://notcve.org/view.php?id=CVE-2024-33861
12 Jun 2025 — Please review the referenced CVE identifiers for details. •
CVSS: 7.8EPSS: 0%CPEs: 23EXPL: 0CVE-2025-3932 – thunderbird: Tracking Links in Attachments Bypassed Remote Content Blocking
https://notcve.org/view.php?id=CVE-2025-3932
14 May 2025 — It was possible to craft an email that showed a tracking link as an attachment. If the user attempted to open the attachment, Thunderbird automatically accessed the link. The configuration to block remote content did not prevent that. Thunderbird has been fixed to no longer allow access to web pages listed in the X-Mozilla-External-Attachment-URL header of an email. This vulnerability affects Thunderbird < 128.10.1 and Thunderbird < 138.0.1. • https://bugzilla.mozilla.org/show_bug.cgi?id=1960412 • CWE-288: Authentication Bypass Using an Alternate Path or Channel •
CVSS: 6.5EPSS: 0%CPEs: 23EXPL: 0CVE-2025-3909 – thunderbird: JavaScript Execution via Spoofed PDF Attachment and file:/// Link
https://notcve.org/view.php?id=CVE-2025-3909
14 May 2025 — Thunderbird's handling of the X-Mozilla-External-Attachment-URL header can be exploited to execute JavaScript in the file:/// context. By crafting a nested email attachment (message/rfc822) and setting its content type to application/pdf, Thunderbird may incorrectly render it as HTML when opened, allowing the embedded JavaScript to run without requiring a file download. This behavior relies on Thunderbird auto-saving the attachment to /tmp and linking to it via the file:/// protocol, potentially enabling Ja... • https://bugzilla.mozilla.org/show_bug.cgi?id=1958376 • CWE-290: Authentication Bypass by Spoofing •
CVSS: 7.8EPSS: 0%CPEs: 23EXPL: 0CVE-2025-3875 – thunderbird: Sender Spoofing via Malformed From Header in Thunderbird
https://notcve.org/view.php?id=CVE-2025-3875
14 May 2025 — Thunderbird parses addresses in a way that can allow sender spoofing in case the server allows an invalid From address to be used. For example, if the From header contains an (invalid) value "Spoofed Name ", Thunderbird treats spoofed@example.com as the actual address. This vulnerability affects Thunderbird < 128.10.1 and Thunderbird < 138.0.1. The Mozilla Foundation's Security Advisory describes the following issue: Thunderbird parses addresses in a way that can allow sender spoofing in case the server all... • https://bugzilla.mozilla.org/show_bug.cgi?id=1950629 • CWE-290: Authentication Bypass by Spoofing •
CVSS: 7.5EPSS: 0%CPEs: 24EXPL: 0CVE-2025-2830 – thunderbird: Information Disclosure of /tmp directory listing
https://notcve.org/view.php?id=CVE-2025-2830
15 Apr 2025 — By crafting a malformed file name for an attachment in a multipart message, an attacker can trick Thunderbird into including a directory listing of /tmp when the message is forwarded or edited as a new message. This vulnerability could allow attackers to disclose sensitive information from the victim's system. This vulnerability is not limited to Linux; similar behavior has been observed on Windows as well. This vulnerability affects Thunderbird < 137.0.2 and Thunderbird < 128.9.2. Multiple security issues ... • https://bugzilla.mozilla.org/show_bug.cgi?id=1956379 • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVSS: 7.8EPSS: 0%CPEs: 24EXPL: 0CVE-2025-3522 – thunderbird: Leak of hashed Window credentials via crafted attachment URL
https://notcve.org/view.php?id=CVE-2025-3522
15 Apr 2025 — Thunderbird processes the X-Mozilla-External-Attachment-URL header to handle attachments which can be hosted externally. When an email is opened, Thunderbird accesses the specified URL to determine file size, and navigates to it when the user clicks the attachment. Because the URL is not validated or sanitized, it can reference internal resources like chrome:// or SMB share file:// links, potentially leading to hashed Windows credential leakage and opening the door to more serious security issues. This vuln... • https://bugzilla.mozilla.org/show_bug.cgi?id=1955372 • CWE-601: URL Redirection to Untrusted Site ('Open Redirect') CWE-1220: Insufficient Granularity of Access Control •
CVSS: 5.3EPSS: 0%CPEs: 10EXPL: 0CVE-2025-26695 – Gentoo Linux Security Advisory 202505-03
https://notcve.org/view.php?id=CVE-2025-26695
10 Mar 2025 — When requesting an OpenPGP key from a WKD server, an incorrect padding size was used and a network observer could have learned the length of the requested email address. This vulnerability affects Thunderbird < 136 and Thunderbird < 128.8. Multiple vulnerabilities have been discovered in Mozilla Thunderbird, the worst of which could lead to remote code execution. Versions greater than or equal to 128.9.0 are affected. • https://bugzilla.mozilla.org/show_bug.cgi?id=1883039 •
CVSS: 7.8EPSS: 0%CPEs: 10EXPL: 0CVE-2025-26696 – Gentoo Linux Security Advisory 202505-03
https://notcve.org/view.php?id=CVE-2025-26696
10 Mar 2025 — Certain crafted MIME email messages that claimed to contain an encrypted OpenPGP message, which instead contained an OpenPGP signed message, were wrongly shown as being encrypted. This vulnerability affects Thunderbird < 136 and Thunderbird < 128.8. Multiple vulnerabilities have been discovered in Mozilla Thunderbird, the worst of which could lead to remote code execution. Versions greater than or equal to 128.9.0 are affected. • https://bugzilla.mozilla.org/show_bug.cgi?id=1864205 • CWE-290: Authentication Bypass by Spoofing •
CVSS: 9.0EPSS: 0%CPEs: 34EXPL: 0CVE-2025-1933 – firefox: JIT corruption of WASM i32 return values on 64-bit CPUs
https://notcve.org/view.php?id=CVE-2025-1933
28 Feb 2025 — On 64-bit CPUs, when the JIT compiles WASM i32 return values they can pick up bits from left over memory. This can potentially cause them to be treated as a different type. This vulnerability affects Firefox < 136, Firefox ESR < 115.21, and Firefox ESR < 128.8. On 64-bit CPUs, when the JIT compiles WASM i32 return values they can pick up bits from left over memory. This can potentially cause them to be treated as a different type. • https://bugzilla.mozilla.org/show_bug.cgi?id=1946004 • CWE-843: Access of Resource Using Incompatible Type ('Type Confusion') •
CVSS: 10.0EPSS: 0%CPEs: 34EXPL: 0CVE-2025-1937 – firefox: thunderbird: Memory safety bugs fixed in Firefox 136, Thunderbird 136, Firefox ESR 115.21, Firefox ESR 128.8, and Thunderbird 128.8
https://notcve.org/view.php?id=CVE-2025-1937
28 Feb 2025 — Memory safety bugs present in Firefox 135, Thunderbird 135, Firefox ESR 115.20, Firefox ESR 128.7, and Thunderbird 128.7. 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 affects Firefox < 136, Firefox ESR < 115.21, and Firefox ESR < 128.8. Memory safety bugs present in Firefox 135, Thunderbird 135, Firefox ESR 115.20, Firefox ESR 128.7, and Thunderbird 128.7. Some of these bugs sh... • https://bugzilla.mozilla.org/buglist.cgi?bug_id=1938471%2C1940716 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-1260: Improper Handling of Overlap Between Protected Memory Ranges •