Known vulnerabilities in Mozilla Thunderbird

Vendor: Mozilla
Software CPE: cpe:2.3:a:mozilla:mozilla_thunderbird:*:*:*:*:*:*:*:*
Total vulnerabilities: 1276
Public exploits: 34
Known exploited (KEV): 12

Breakdown by Severity Chart

Severity distribution of vulnerabilities affecting Mozilla Thunderbird Mozilla Thunderbird is affected by 1276 known vulnerabilities: 10 critical, 565 high, 369 medium, 332 low Critical High Medium Low

Vulnerabilities (1276)

Vulnerability CWE-ID CSH Severity Public Exploit KEV First fixed release Published Bulletins
#VU144085 - Exposure of sensitive information to an unauthorized actor
CVE-2026-74966
CWE-200 Low
No
No
153.1.0, 154.0 18.08.2026 SB2026081838
SB2026081988
SB2026081989
and 4 more
#VU144086 - Protection Mechanism Failure
CVE-2026-74968
CWE-693 Medium
No
No
153.1.0, 154.0 18.08.2026 SB2026081838
SB2026081988
SB2026081989
and 4 more
#VU144087 - Protection Mechanism Failure
CVE-2026-74970
CWE-693 Medium
No
No
153.1.0, 154.0 18.08.2026 SB2026081838
SB2026081988
SB2026081989
and 4 more
#VU144088 - Integer overflow
CVE-2026-74977
CWE-190 Low
No
No
153.1.0, 154.0 18.08.2026 SB2026081838
SB2026081988
SB2026081989
and 4 more
#VU144089 - Improper Restriction of Rendered UI Layers or Frames
CVE-2026-74978
CWE-1021 Medium
No
No
153.1.0, 154.0 18.08.2026 SB2026081838
SB2026081988
SB2026081989
and 4 more
#VU144090 - Protection Mechanism Failure
CVE-2026-74979
CWE-693 Medium
No
No
153.1.0, 154.0 18.08.2026 SB2026081838
SB2026081988
SB2026081989
and 4 more
#VU144091 - Protection Mechanism Failure
CVE-2026-74981
CWE-693 Medium
No
No
153.1.0, 154.0 18.08.2026 SB2026081838
SB2026081988
SB2026081989
and 4 more
#VU144092 - Improper input validation
CVE-2026-74982
CWE-20 Low
No
No
153.1.0, 154.0 18.08.2026 SB2026081838
SB2026081988
SB2026081989
and 4 more
#VU144074 - Protection Mechanism Failure
CVE-2026-74983
CWE-693 Medium
No
No
140.14.0, 153.1.0, 154.0 18.08.2026 SB2026081838
SB2026081987
SB2026081988
and 24 more
#VU144068 - Integer overflow
CVE-2026-74964
CWE-190 Medium
No
No
140.14.0, 153.1.0, 154.0 18.08.2026 SB2026081838
SB2026081987
SB2026081988
and 31 more
#VU144069 - Improper Privilege Management
CVE-2026-74965
CWE-269 Medium
No
No
140.14.0, 153.1.0, 154.0 18.08.2026 SB2026081838
SB2026081987
SB2026081988
and 31 more
#VU144070 - Origin Validation Error
CVE-2026-74967
CWE-346 Medium
No
No
140.14.0, 153.1.0, 154.0 18.08.2026 SB2026081838
SB2026081987
SB2026081988
and 29 more
#VU144071 - Exposure of sensitive information to an unauthorized actor
CVE-2026-74971
CWE-200 Low
No
No
140.14.0, 153.1.0, 154.0 18.08.2026 SB2026081838
SB2026081987
SB2026081988
and 33 more
#VU144072 - Exposure of sensitive information to an unauthorized actor
CVE-2026-74972
CWE-200 Low
No
No
140.14.0, 153.1.0, 154.0 18.08.2026 SB2026081838
SB2026081987
SB2026081988
and 33 more
#VU144073 - Incorrect Calculation
CVE-2026-74976
CWE-682 Low
No
No
140.14.0, 153.1.0, 154.0 18.08.2026 SB2026081838
SB2026081987
SB2026081988
and 33 more
#VU144066 - Origin Validation Error
CVE-2026-74962
CWE-346 Medium
No
No
140.14.0, 153.1.0, 154.0 18.08.2026 SB2026081838
SB2026081987
SB2026081988
and 33 more
#VU144067 - Origin Validation Error
CVE-2026-74963
CWE-346 Medium
No
No
140.14.0, 153.1.0, 154.0 18.08.2026 SB2026081838
SB2026081987
SB2026081988
and 33 more
#VU144054 - Use After Free
CVE-2026-74969
CWE-416 High
No
No
140.14.0, 153.1.0, 154.0 18.08.2026 SB2026081838
SB2026081987
SB2026081988
and 24 more
#VU144055 - Use After Free
CVE-2026-74973
CWE-416 High
No
No
140.14.0, 153.1.0, 154.0 18.08.2026 SB2026081838
SB2026081987
SB2026081988
and 33 more
#VU144056 - Improper Access Control
CVE-2026-74974
CWE-284 Medium
No
No
140.14.0, 153.1.0, 154.0 18.08.2026 SB2026081838
SB2026081987
SB2026081988
and 33 more


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