For Exchange accounts using EWS or Microsoft Graph with OAuth2 authentication, Thunderbird sent the OAuth2 access token to the server even when the configured server URL used unencrypted HTTP. An attacker able to observe network traffic could obtain the token and use it to access...
Product
debian/thunderbird vulnerabilities
1,729 published CVES affecting debian/thunderbird, from public sources (CVE.org, NVD, CISA KEV, FIRST EPSS, OSV).
- Total
- 1,729
- Critical
- 274
- High
- 747
- Medium
- 487
- Low
- 21
- Unscored
- 200
- CISA KEV
- 10
Latest debian/thunderbird CVEs
Newest publication first · page 1 of 40 · showing the latest 1,000
-
MediumCVSS 6.1 EPSS 0.24%
-
MediumCVSS 6.1 EPSS 0.19%
If an attacker was able to perform a man-in-the-middle attack on an SMTP or POP3 server connection using STARTTLS, the attacker could inject server responses before the TLS handshake completed. Thunderbird would process these responses after the handshake, as if they had been rec...
-
MediumCVSS 6.1 EPSS 0.19%
Thunderbird allowed feed subscriptions to file: URLs that point to a network share. If a user was tricked into subscribing to such a URL, Thunderbird connected to the attacker's server when fetching the feed. Windows then sent the user's NTLM credentials to that server. This bug...
-
MediumCVSS 6.1 EPSS 0.21%
When a CalDAV or ICS calendar was accessed through an HTTP proxy that requested authentication, Thunderbird could answer the proxy with the calendar server's username and password. This affected both setting up a new calendar and syncing existing calendars, where a saved password...
-
HighCVSS 7.5 EPSS 0.18%
When a message was forwarded inline, edited as new, or had an attachment dragged into a compose window, a specially crafted link attachment (a .desktop file on Linux, or a .url or .lnk file on Windows) was replaced with the content of the file or URL it pointed to when the messag...
-
HighCVSS 8.8 EPSS 0.33%
Incorrect boundary conditions, use-after-free in the Graphics component. This vulnerability was fixed in Firefox 160, Firefox ESR 153.7, Thunderbird 160, and Thunderbird 153.7.
-
LowCVSS 3.4 EPSS 0.18%
Privilege escalation in the Nimbus Desktop Client component. This vulnerability was fixed in Firefox 160, Firefox ESR 153.7, Thunderbird 160, and Thunderbird 153.7.
-
MediumCVSS 4.3 EPSS 0.27%
Information disclosure in the Security: RLBox component. This vulnerability was fixed in Firefox 160, Firefox ESR 153.7, Thunderbird 160, and Thunderbird 153.7.
-
LowCVSS 3.4 EPSS 0.18%
Invalid pointer in the DOM: Streams component. This vulnerability was fixed in Firefox 160, Firefox ESR 153.7, Thunderbird 160, and Thunderbird 153.7.
-
LowCVSS 3.4 EPSS 0.19%
Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox 160, Firefox ESR 153.7, Thunderbird 160, and Thunderbird 153.7.
-
LowCVSS 3.4 EPSS 0.18%
JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 160, Firefox ESR 153.7, Thunderbird 160, and Thunderbird 153.7.
-
LowCVSS 3.4 EPSS 0.19%
Mitigation bypass in the Add-ons Manager component. This vulnerability was fixed in Firefox 160, Firefox ESR 153.7, Thunderbird 160, and Thunderbird 153.7.
-
LowCVSS 3.4 EPSS 0.18%
Undefined behavior in the WebRTC: Networking component. This vulnerability was fixed in Firefox 160, Firefox ESR 153.7, Thunderbird 160, and Thunderbird 153.7.
-
LowCVSS 3.4 EPSS 0.18%
Spoofing issue in the Security component. This vulnerability was fixed in Firefox 160, Firefox ESR 153.7, Thunderbird 160, and Thunderbird 153.7.
-
MediumCVSS 6.1 EPSS 0.18%
Sandbox escape in the Console component. This vulnerability was fixed in Firefox 160, Firefox ESR 153.7, Thunderbird 160, and Thunderbird 153.7.
-
HighCVSS 8.8 EPSS 0.33%
Use-after-free in the Graphics component. This vulnerability was fixed in Firefox 160, Firefox ESR 153.7, Thunderbird 160, and Thunderbird 153.7.
-
MediumCVSS 6.1 EPSS 0.19%
Same-origin policy bypass in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 160, Firefox ESR 153.7, Thunderbird 160, and Thunderbird 153.7.
-
MediumCVSS 4.3 EPSS 0.30%
Information disclosure in the Layout: Form Controls component. This vulnerability was fixed in Firefox 160, Firefox ESR 153.7, Thunderbird 160, and Thunderbird 153.7.
-
MediumCVSS 4.3 EPSS 0.30%
Information disclosure in the Address Bar component. This vulnerability was fixed in Firefox 160, Firefox ESR 153.7, Thunderbird 160, and Thunderbird 153.7.
-
MediumCVSS 6.1 EPSS 0.18%
Site isolation issue in the Graphics: WebRender component. This vulnerability was fixed in Firefox 160, Firefox ESR 153.7, Thunderbird 160, and Thunderbird 153.7.
-
HighCVSS 8.8 EPSS 0.34%
Incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 160, Firefox ESR 153.7, Thunderbird 160, and Thunderbird 153.7.
-
HighCVSS 8.8 EPSS 0.34%
Incorrect boundary conditions in the Graphics: WebRender component. This vulnerability was fixed in Firefox 160, Firefox ESR 153.7, Thunderbird 160, and Thunderbird 153.7.
-
HighCVSS 8.8 EPSS 0.33%
Use-after-free in the CSS Transitions and Animations component. This vulnerability was fixed in Firefox 160, Firefox ESR 153.7, Thunderbird 160, and Thunderbird 153.7.
-
CVE-2026-124919 Privilege escalation due to use-after-free in the WebRTC: Networking component
PublishedHighCVSS 8.8 EPSS 0.33%Privilege escalation due to use-after-free in the WebRTC: Networking component. This vulnerability was fixed in Firefox 160, Firefox ESR 153.7, Thunderbird 160, and Thunderbird 153.7.
-
HighCVSS 8.8 EPSS 0.34%
Privilege escalation due to incorrect boundary conditions in the Graphics: WebRender component. This vulnerability was fixed in Firefox 160, Firefox ESR 153.7, Thunderbird 160, and Thunderbird 153.7.
Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.