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3970 vulnerabilities found for Thunderbird by Mozilla
CVE-2026-12305 (GCVE-0-2026-12305)
Vulnerability from nvd – Published: 2026-06-16 11:52 – Updated: 2026-06-18 18:00
VLAI
EPSS
VEX
Title
Memory safety bug fixed in Firefox 152
Summary
Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.12 , ≤ 140.*
(rpm)
Unaffected: 152 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.12 , ≤ 140.*
(rpm)
Unaffected: 152 , ≤ * (rpm) |
Credits
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"integrityImpact": "NONE",
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"scope": "UNCHANGED",
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"timestamp": "2026-06-16T17:30:43.501798Z",
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}
]
}
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
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}
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"vendor": "Mozilla",
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"value": "Zijie Zhao"
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},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-57/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-58/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-60/"
},
{
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}
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CVE-2026-12304 (GCVE-0-2026-12304)
Vulnerability from nvd – Published: 2026-06-16 11:52 – Updated: 2026-06-16 18:55
VLAI
EPSS
VEX
Title
Same-origin policy bypass in the Networking: Cookies component
Summary
Same-origin policy bypass in the Networking: Cookies component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-346 - Origin Validation Error
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.12 , ≤ 140.*
(rpm)
Unaffected: 152 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.12 , ≤ 140.*
(rpm)
Unaffected: 152 , ≤ * (rpm) |
Credits
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},
"title": "CISA ADP Vulnrichment"
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"vendor": "Mozilla",
"versions": [
{
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"version": "140.12",
"versionType": "rpm"
},
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"status": "unaffected",
"version": "152",
"versionType": "rpm"
}
]
},
{
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"vendor": "Mozilla",
"versions": [
{
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"status": "unaffected",
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},
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"status": "unaffected",
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"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Yaqoub Aldurayhim"
}
],
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{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
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}
],
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}
],
"providerMetadata": {
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},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-57/"
},
{
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},
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CVE-2026-12303 (GCVE-0-2026-12303)
Vulnerability from nvd – Published: 2026-06-16 11:52 – Updated: 2026-06-16 16:08
VLAI
EPSS
VEX
Title
Information disclosure due to incorrect boundary conditions in the Graphics: WebGPU component
Summary
Information disclosure due to incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 152 and Thunderbird 152.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
152 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
152 , ≤ *
(rpm)
|
Credits
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"adp": [
{
"metrics": [
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"attackVector": "NETWORK",
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"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
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"timestamp": "2026-06-16T14:31:06.824125Z",
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"vendor": "Mozilla",
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"vendor": "Mozilla",
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"lang": "en",
"value": "Michal Andryskowski"
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],
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{
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"base64": false,
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{
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CVE-2026-12302 (GCVE-0-2026-12302)
Vulnerability from nvd – Published: 2026-06-16 11:52 – Updated: 2026-06-16 17:30
VLAI
EPSS
VEX
Title
Mitigation bypass in the DOM: Security component
Summary
Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-693 - Protection Mechanism Failure
Assigner
References
6 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.37 , ≤ 115.*
(rpm)
Unaffected: 140.12 , ≤ 140.* (rpm) Unaffected: 152 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.12 , ≤ 140.*
(rpm)
Unaffected: 152 , ≤ * (rpm) |
Credits
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},
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"url": "https://www.mozilla.org/security/advisories/mfsa2026-59/"
},
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"url": "https://www.mozilla.org/security/advisories/mfsa2026-60/"
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CVE-2026-12301 (GCVE-0-2026-12301)
Vulnerability from nvd – Published: 2026-06-16 11:52 – Updated: 2026-06-18 18:00
VLAI
EPSS
VEX
Title
Memory safety bug fixed in Firefox 152
Summary
Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152 and Thunderbird 152.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
152 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
152 , ≤ *
(rpm)
|
Credits
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"attackVector": "NETWORK",
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"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
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"version": "3.1"
}
},
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}
],
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"timestamp": "2026-06-16T17:27:03.360766Z",
"version": "2.0.3"
},
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}
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}
]
}
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
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"vendor": "Mozilla",
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"versionType": "rpm"
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]
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],
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],
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}
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CVE-2026-12300 (GCVE-0-2026-12300)
Vulnerability from nvd – Published: 2026-06-16 11:52 – Updated: 2026-06-18 18:00
VLAI
EPSS
VEX
Title
Memory safety bug fixed in Firefox 152
Summary
Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152 and Thunderbird 152.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
152 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
152 , ≤ *
(rpm)
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Credits
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CVE-2026-12299 (GCVE-0-2026-12299)
Vulnerability from nvd – Published: 2026-06-16 11:52 – Updated: 2026-07-14 12:04
VLAI
EPSS
VEX
Title
JIT miscompilation in the DOM: Core & HTML component
Summary
JIT miscompilation in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
Severity
5.4 (Medium)
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
28 references
Impacted products
19 products
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CVE-2026-12298 (GCVE-0-2026-12298)
Vulnerability from nvd – Published: 2026-06-16 11:52 – Updated: 2026-07-14 12:04
VLAI
EPSS
VEX
Title
Memory safety bug fixed in Firefox 152
Summary
Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
Severity
5.4 (Medium)
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
27 references
Impacted products
19 products
Credits
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CVE-2026-12297 (GCVE-0-2026-12297)
Vulnerability from nvd – Published: 2026-06-16 11:52 – Updated: 2026-07-14 12:04
VLAI
EPSS
VEX
Title
Sandbox escape due to incorrect boundary conditions in the Networking component
Summary
Sandbox escape due to incorrect boundary conditions in the Networking component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
Severity
9.6 (Critical)
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
28 references
Impacted products
19 products
Credits
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CVE-2026-12296 (GCVE-0-2026-12296)
Vulnerability from nvd – Published: 2026-06-16 11:52 – Updated: 2026-07-14 12:04
VLAI
EPSS
VEX
Title
Sandbox escape in the Security: Process Sandboxing component
Summary
Sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
Severity
9.6 (Critical)
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
27 references
Impacted products
19 products
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CVE-2026-12295 (GCVE-0-2026-12295)
Vulnerability from nvd – Published: 2026-06-16 11:52 – Updated: 2026-07-14 12:04
VLAI
EPSS
VEX
Title
Sandbox escape in the DOM: Navigation component
Summary
Sandbox escape in the DOM: Navigation component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
Severity
9.6 (Critical)
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
28 references
Impacted products
19 products
Credits
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CVE-2026-12294 (GCVE-0-2026-12294)
Vulnerability from nvd – Published: 2026-06-16 11:52 – Updated: 2026-07-14 12:04
VLAI
EPSS
VEX
Title
Sandbox escape in the DOM: Workers component
Summary
Sandbox escape in the DOM: Workers component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
Severity
9.6 (Critical)
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
28 references
Impacted products
19 products
Credits
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CVE-2026-12293 (GCVE-0-2026-12293)
Vulnerability from nvd – Published: 2026-06-16 11:52 – Updated: 2026-06-30 03:18
VLAI
EPSS
VEX
Title
Use-after-free in the Graphics: WebGPU component
Summary
Use-after-free in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 152 and Thunderbird 152.
Severity
9.8 (Critical)
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=2039568 | |
| https://www.mozilla.org/security/advisories/mfsa2… | |
| https://www.mozilla.org/security/advisories/mfsa2… | |
| https://access.redhat.com/security/cve/CVE-2026-12293 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2489216 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
Impacted products
7 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
152 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
152 , ≤ *
(rpm)
|
|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10 |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6 |
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9 |
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CVE-2026-12292 (GCVE-0-2026-12292)
Vulnerability from nvd – Published: 2026-06-16 11:52 – Updated: 2026-07-14 12:04
VLAI
EPSS
VEX
Title
Incorrect boundary conditions in the Web Audio component
Summary
Incorrect boundary conditions in the Web Audio component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
Severity
8.1 (High)
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
27 references
Impacted products
19 products
Credits
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CVE-2026-12291 (GCVE-0-2026-12291)
Vulnerability from nvd – Published: 2026-06-16 11:52 – Updated: 2026-07-14 12:04
VLAI
EPSS
VEX
Title
Use-after-free in the Networking: HTTP component
Summary
Use-after-free in the Networking: HTTP component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
Severity
8.8 (High)
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
28 references
Impacted products
19 products
Credits
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CVE-2026-12290 (GCVE-0-2026-12290)
Vulnerability from nvd – Published: 2026-06-16 11:52 – Updated: 2026-07-14 12:04
VLAI
EPSS
VEX
Title
Memory safety bug fixed in Firefox 152
Summary
Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
Severity
8.1 (High)
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
28 references
Impacted products
19 products
Credits
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CVE-2026-12289 (GCVE-0-2026-12289)
Vulnerability from nvd – Published: 2026-06-16 11:52 – Updated: 2026-07-14 12:04
VLAI
EPSS
VEX
Title
Privilege escalation in the Graphics: WebRender component
Summary
Privilege escalation in the Graphics: WebRender component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
Severity
8.8 (High)
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
28 references
Impacted products
19 products
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CVE-2026-12330 (GCVE-0-2026-12330)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:53 – Updated: 2026-06-16 16:08
VLAI
EPSS
VEX
Title
Incorrect boundary conditions in the Internationalization component
Summary
Incorrect boundary conditions in the Internationalization component. This vulnerability was fixed in Firefox ESR 140.12, Firefox ESR 115.37, and Thunderbird 140.12.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.37 , ≤ 115.*
(rpm)
Unaffected: 140.12 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.12 , ≤ *
(rpm)
|
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CVE-2026-12329 (GCVE-0-2026-12329)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:53 – Updated: 2026-07-14 12:04
VLAI
EPSS
VEX
Title
Memory safety bug fixed in Thunderbird ESR 140.12
Summary
Memory safety bug fixed in Thunderbird ESR 140.12. This vulnerability was fixed in Firefox ESR 140.12 and Thunderbird 140.12.
Severity
5.3 (Medium)
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
25 references
Impacted products
19 products
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CVE-2026-12328 (GCVE-0-2026-12328)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:53 – Updated: 2026-07-14 12:04
VLAI
EPSS
VEX
Title
Memory safety bugs fixed in Firefox ESR 115.37, Firefox ESR 140.12, Thunderbird ESR 140.12, Firefox 152 and Thunderbird 152
Summary
Memory safety bugs present in Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151 and Thunderbird 151. 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 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
Severity
8.1 (High)
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
28 references
Impacted products
19 products
Credits
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CVE-2026-12327 (GCVE-0-2026-12327)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:53 – Updated: 2026-06-17 11:08
VLAI
EPSS
VEX
Title
Memory safety bugs fixed in Firefox ESR 140.12, Thunderbird ESR 140.12, Firefox 152 and Thunderbird 152
Summary
Memory safety bugs present in Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151 and Thunderbird 151. 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 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.12 , ≤ 140.*
(rpm)
Unaffected: 152 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.12 , ≤ 140.*
(rpm)
Unaffected: 152 , ≤ * (rpm) |
Credits
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CVE-2026-12326 (GCVE-0-2026-12326)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-30 03:17
VLAI
EPSS
VEX
Title
Memory safety bugs fixed in Firefox 152 and Thunderbird 152
Summary
Memory safety bugs present in Firefox 151 and Thunderbird 151. 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 152 and Thunderbird 152.
Severity
8.1 (High)
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
8 references
Impacted products
7 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
152 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
152 , ≤ *
(rpm)
|
|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10 |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6 |
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9 |
Credits
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CVE-2026-12325 (GCVE-0-2026-12325)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-16 16:08
VLAI
EPSS
VEX
Title
Denial-of-service in the Graphics: ImageLib component
Summary
Denial-of-service in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
6 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.37 , ≤ 115.*
(rpm)
Unaffected: 140.12 , ≤ 140.* (rpm) Unaffected: 152 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.12 , ≤ 140.*
(rpm)
Unaffected: 152 , ≤ * (rpm) |
Credits
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CVE-2026-12324 (GCVE-0-2026-12324)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-16 16:11
VLAI
EPSS
VEX
Title
Incorrect boundary conditions in the Graphics: CanvasWebGL component
Summary
Incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
Severity
7.3 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-703 - Improper Check or Handling of Exceptional Conditions
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.12 , ≤ 140.*
(rpm)
Unaffected: 152 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.12 , ≤ 140.*
(rpm)
Unaffected: 152 , ≤ * (rpm) |
Credits
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CVE-2026-12323 (GCVE-0-2026-12323)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-16 16:08
VLAI
EPSS
VEX
Title
Spoofing issue in the DOM: Core & HTML component
Summary
Spoofing issue in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 152 and Thunderbird 152.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1021 - Improper Restriction of Rendered UI Layers or Frames
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
152 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
152 , ≤ *
(rpm)
|
Credits
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CVE-2026-12322 (GCVE-0-2026-12322)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-18 18:00
VLAI
EPSS
VEX
Title
Clickjacking issue in the Widget: Gtk component
Summary
Clickjacking issue in the Widget: Gtk component. This vulnerability was fixed in Firefox 152 and Thunderbird 152.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1021 - Improper Restriction of Rendered UI Layers or Frames
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
152 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
152 , ≤ *
(rpm)
|
Credits
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CVE-2026-12321 (GCVE-0-2026-12321)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-16 16:08
VLAI
EPSS
VEX
Title
JIT miscompilation in the JavaScript: WebAssembly component
Summary
JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 152 and Thunderbird 152.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-670 - Always-Incorrect Control Flow Implementation
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
152 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
152 , ≤ *
(rpm)
|
Credits
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CVE-2026-12320 (GCVE-0-2026-12320)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-16 16:08
VLAI
EPSS
VEX
Title
Information disclosure in the Password Manager component
Summary
Information disclosure in the Password Manager component. This vulnerability was fixed in Firefox 152 and Thunderbird 152.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
152 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
152 , ≤ *
(rpm)
|
Credits
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CVE-2026-12319 (GCVE-0-2026-12319)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-16 16:08
VLAI
EPSS
VEX
Title
Denial-of-service in the Audio/Video: Playback component
Summary
Denial-of-service in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 152 and Thunderbird 152.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
152 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
152 , ≤ *
(rpm)
|
Credits
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CVE-2026-12318 (GCVE-0-2026-12318)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-16 18:07
VLAI
EPSS
VEX
Title
Incorrect boundary conditions in the Libraries component in NSS
Summary
Incorrect boundary conditions in the Libraries component in NSS. This vulnerability was fixed in Firefox 152 and Thunderbird 152.
Severity
7.3 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
152 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
152 , ≤ *
(rpm)
|
Credits
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"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-12318",
"datePublished": "2026-06-16T11:52:51.844Z",
"dateReserved": "2026-06-15T15:08:18.136Z",
"dateUpdated": "2026-06-16T18:07:00.082Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}