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VCID-1q61-xygj-z3c1
|
An attacker who enumerated resources from the WebCompat extension could have obtained a persistent UUID that identified the browser, and persisted between containers and normal/private browsing mode, but not profiles.
|
CVE-2025-6425
|
|
VCID-1zvj-cyx8-vyg4
|
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 leak Windows credentials via SMB links
when the email is viewed in HTML mode. While user interaction is
required to download the .pdf file, visual obfuscation can conceal
the download trigger. Viewing the email in HTML mode is enough to
load external content.
|
CVE-2025-5986
|
|
VCID-24jc-r9xj-93fs
|
A process isolation vulnerability in Firefox stemmed from improper handling of javascript: URIs, which could allow content to execute in the top-level document's process instead of the intended frame, potentially enabling a sandbox escape.
|
CVE-2025-4083
|
|
VCID-2st9-4ff5-kuf9
|
Insufficient escaping in the “Copy as cURL” feature could potentially be used to trick a user into executing unexpected code.
|
CVE-2025-8030
|
|
VCID-3p6h-zmbc-gbgq
|
Thunderbird executed javascript: URLs when used in object and embed tags.
|
CVE-2025-8029
|
|
VCID-3qsj-e421-g7a9
|
When an email contains multiple attachments with external links
via the X-Mozilla-External-Attachment-URL header, only the last
link is shown when hovering over any attachment. Although the
correct link is used on click, the misleading hover text could
trick users into downloading content from untrusted sources.
|
CVE-2025-3523
|
|
VCID-4g4j-e7x5-zfhs
|
When a file download is specified via the Content-Disposition header, that directive would be ignored if the file was included via a <embed> or <object> tag, potentially making a website vulnerable to a cross-site scripting attack.
|
CVE-2025-6430
|
|
VCID-62bd-1g3u-cqhp
|
On arm64, a WASM br_table instruction with a lot of entries could lead to the label being too far from the instruction causing truncation and incorrect computation of the branch address.
|
CVE-2025-8028
|
|
VCID-66zs-8x4h-guhx
|
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.
|
CVE-2025-3522
|
|
VCID-8rs8-11yk-akfy
|
The JavaScript engine did not handle closed generators correctly and it was possible to resume them leading to a nullptr deref.
|
CVE-2025-8033
|
|
VCID-9qgx-e2kh-uyew
|
The username:password part was not correctly stripped from URLs in CSP reports potentially leaking HTTP Basic Authentication credentials.
|
CVE-2025-8031
|
|
VCID-ajqq-yeb5-9kb8
|
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.
|
CVE-2025-3875
|
|
VCID-d6uv-yc2e-pbf7
|
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.
|
CVE-2025-3932
|
|
VCID-ek9g-1ur7-vud4
|
Error handling for script execution was incorrectly isolated from web content, which could have allowed cross-origin leak attacks.
|
CVE-2025-5263
|
|
VCID-fdr6-qypx-1uhr
|
An attacker was able to perform an out-of-bounds read or write on a JavaScript object by confusing array index sizes.
|
CVE-2025-4919
|
|
VCID-g2eh-3utg-f7cn
|
An attacker was able to perform an out-of-bounds read or write on a JavaScript `Promise` object.
|
CVE-2025-4918
|
|
VCID-g76u-agqq-eqca
|
Thunderbird could have incorrectly parsed a URL and rewritten it to the youtube.com domain when parsing the URL specified in an embed tag. This could have bypassed website security checks that restricted which domains users were allowed to embed.
|
CVE-2025-6429
|
|
VCID-gf4f-pq9k-kugc
|
A use-after-free in FontFaceSet resulted in a potentially exploitable crash.
|
CVE-2025-6424
|
|
VCID-gw8f-56ya-fyaj
|
A double-free could have occurred in `vpx_codec_enc_init_multi` after a failed allocation when initializing the encoder for WebRTC. This could have caused memory corruption and a potentially exploitable crash.
|
CVE-2025-5283
|
|
VCID-h3um-uvwe-9udy
|
A vulnerability was identified in Thunderbird where XPath parsing could trigger undefined behavior due to missing null checks during attribute access. This could lead to out-of-bounds read access and potentially, memory corruption.
|
CVE-2025-4087
|
|
VCID-k2g8-b3u6-63aj
|
On 64-bit platforms IonMonkey-JIT only wrote 32 bits of the 64-bit return value space on the stack. Baseline-JIT, however, read the entire 64 bits.
|
CVE-2025-8027
|
|
VCID-qst2-ktgg-jkfp
|
Memory safety bugs present in Firefox ESR 115.25, Firefox ESR 128.12, Thunderbird ESR 128.12, Firefox ESR 140.0, Thunderbird ESR 140.0, Firefox 140 and Thunderbird 140. 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.
|
CVE-2025-8034
|
|
VCID-r6r1-du8s-xbhw
|
Memory safety bugs present in Firefox ESR 128.12, Thunderbird ESR 128.12, Firefox ESR 140.0, Thunderbird ESR 140.0, Firefox 140 and Thunderbird 140. 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.
|
CVE-2025-8035
|
|
VCID-sz4n-5y9b-4fdh
|
Script elements loading cross-origin resources generated load and error events which leaked information enabling XS-Leaks attacks.
|
CVE-2025-5266
|
|
VCID-tmnj-uwkc-nkc6
|
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.
|
CVE-2025-2830
|
|
VCID-u8zp-hwjv-8fgf
|
Memory safety bug present in Firefox ESR 128.10, and Thunderbird 128.10. This bug showed evidence of memory corruption and we presume that with enough effort this could have been exploited to run arbitrary code.
|
CVE-2025-5269
|
|
VCID-ufc9-wufv-ubgc
|
Memory safety bugs present in Firefox 137, Thunderbird 137, Firefox ESR 128.9, and Thunderbird 128.9. 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.
|
CVE-2025-4091
|
|
VCID-ufen-1skg-17b2
|
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.
|
CVE-2025-5268
|
|
VCID-utqu-6qzq-hudx
|
A clickjacking vulnerability could have been used to trick a user into leaking saved payment card details to a malicious page.
|
CVE-2025-5267
|
|
VCID-vabp-m3k4-wqhz
|
Due to insufficient escaping of the newline character 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.
|
CVE-2025-5264
|
|
VCID-wzr2-5k1q-yybx
|
XSLT document loading did not correctly propagate the source document which bypassed its CSP.
|
CVE-2025-8032
|
|
VCID-zs5p-7527-m3gf
|
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
JavaScript execution as part of the HTML.
|
CVE-2025-3909
|
|
VCID-zuwe-8m4p-u7hr
|
Memory safety bug present in Firefox ESR 128.9, and Thunderbird 128.9. This bug showed evidence of memory corruption and we presume that with enough effort this could have been exploited to run arbitrary code.
|
CVE-2025-4093
|