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CERTFR-2026-AVI-0480
Vulnerability from certfr_avis - Published: 2026-04-22 - Updated: 2026-04-22
De multiples vulnérabilités ont été découvertes dans les produits Mozilla. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, une élévation de privilèges et un déni de service à distance.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| Mozilla | Firefox ESR | Firefox ESR versions antérieures à 140.10 | ||
| Mozilla | Firefox | Firefox versions antérieures à 150 | ||
| Mozilla | Firefox ESR | Firefox ESR versions antérieures à 115.35 | ||
| Mozilla | Thunderbird | Thunderbird versions antérieures à 150 | ||
| Mozilla | Thunderbird | Thunderbird versions antérieures à 140.10 |
References
| Title | Publication Time | Tags | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Firefox ESR versions ant\u00e9rieures \u00e0 140.10",
"product": {
"name": "Firefox ESR",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Firefox versions ant\u00e9rieures \u00e0 150",
"product": {
"name": "Firefox",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Firefox ESR versions ant\u00e9rieures \u00e0 115.35",
"product": {
"name": "Firefox ESR",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Thunderbird versions ant\u00e9rieures \u00e0 150",
"product": {
"name": "Thunderbird",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Thunderbird versions ant\u00e9rieures \u00e0 140.10",
"product": {
"name": "Thunderbird",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2026-6772",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6772"
},
{
"name": "CVE-2026-6747",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6747"
},
{
"name": "CVE-2026-6782",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6782"
},
{
"name": "CVE-2026-6786",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6786"
},
{
"name": "CVE-2026-6750",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6750"
},
{
"name": "CVE-2026-6757",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6757"
},
{
"name": "CVE-2026-6768",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6768"
},
{
"name": "CVE-2026-6746",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6746"
},
{
"name": "CVE-2026-6761",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6761"
},
{
"name": "CVE-2026-6762",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6762"
},
{
"name": "CVE-2026-6769",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6769"
},
{
"name": "CVE-2026-6751",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6751"
},
{
"name": "CVE-2026-6780",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6780"
},
{
"name": "CVE-2026-6765",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6765"
},
{
"name": "CVE-2026-2781",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2781"
},
{
"name": "CVE-2026-6773",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6773"
},
{
"name": "CVE-2026-6754",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6754"
},
{
"name": "CVE-2026-6781",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6781"
},
{
"name": "CVE-2026-6756",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6756"
},
{
"name": "CVE-2026-6758",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6758"
},
{
"name": "CVE-2026-6785",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6785"
},
{
"name": "CVE-2026-6783",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6783"
},
{
"name": "CVE-2026-6760",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6760"
},
{
"name": "CVE-2026-6759",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6759"
},
{
"name": "CVE-2026-6774",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6774"
},
{
"name": "CVE-2026-6779",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6779"
},
{
"name": "CVE-2026-6777",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6777"
},
{
"name": "CVE-2026-6748",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6748"
},
{
"name": "CVE-2026-6778",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6778"
},
{
"name": "CVE-2026-6752",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6752"
},
{
"name": "CVE-2026-6767",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6767"
},
{
"name": "CVE-2026-6775",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6775"
},
{
"name": "CVE-2026-6749",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6749"
},
{
"name": "CVE-2026-6771",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6771"
},
{
"name": "CVE-2026-6753",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6753"
},
{
"name": "CVE-2026-6764",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6764"
},
{
"name": "CVE-2026-6763",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6763"
},
{
"name": "CVE-2026-6776",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6776"
},
{
"name": "CVE-2026-6766",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6766"
},
{
"name": "CVE-2026-6770",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6770"
},
{
"name": "CVE-2026-6784",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6784"
},
{
"name": "CVE-2026-6755",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6755"
}
],
"initial_release_date": "2026-04-22T00:00:00",
"last_revision_date": "2026-04-22T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-0480",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-04-22T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
},
{
"description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
},
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
},
{
"description": "\u00c9l\u00e9vation de privil\u00e8ges"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans les produits Mozilla. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer une ex\u00e9cution de code arbitraire \u00e0 distance, une \u00e9l\u00e9vation de privil\u00e8ges et un d\u00e9ni de service \u00e0 distance.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans les produits Mozilla",
"vendor_advisories": [
{
"published_at": "2026-04-21",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-32",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-32/"
},
{
"published_at": "2026-04-21",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-34",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-34/"
},
{
"published_at": "2026-04-21",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-33",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-33/"
},
{
"published_at": "2026-04-21",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-31",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-31/"
},
{
"published_at": "2026-04-21",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-30",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-30/"
}
]
}
CVE-2026-6785 (GCVE-0-2026-6785)
Vulnerability from cvelistv5 – Published: 2026-04-21 12:41 – Updated: 2026-06-30 12:06
VLAI
EPSS
Title
Memory safety bugs fixed in Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird ESR 140.10, Firefox 150 and Thunderbird 150
Summary
Memory safety bugs present in Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149. 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 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
36 references
Impacted products
21 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.35 , ≤ 115.*
(rpm)
Unaffected: 140.10 , ≤ 140.* (rpm) Unaffected: 150 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.10 , ≤ 140.*
(rpm)
Unaffected: 150 , ≤ * (rpm) |
|
| Red Hat | Red Hat Enterprise Linux Server (v. 7 ELS) |
cpe:/o:redhat:rhel_els:7 |
|
| Red Hat | Red Hat Enterprise Linux AppStream EUS (v. 10.0) |
cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
| Red Hat | Red Hat Enterprise Linux AppStream (v. 10) |
cpe:/o:redhat:enterprise_linux:10.1 cpe:/o:redhat:enterprise_linux:10.2 |
|
| Red Hat | Red Hat Enterprise Linux AppStream (v. 8) |
cpe:/a:redhat:enterprise_linux:8::appstream |
|
| Red Hat | Red Hat Enterprise Linux AppStream AUS (v.8.4) |
cpe:/a:redhat:rhel_aus:8.4::appstream |
|
| Red Hat | Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) |
cpe:/a:redhat:rhel_eus_long_life:8.4::appstream |
|
| Red Hat | Red Hat Enterprise Linux AppStream AUS (v.8.6) |
cpe:/a:redhat:rhel_aus:8.6::appstream |
|
| Red Hat | Red Hat Enterprise Linux AppStream E4S (v.8.6) |
cpe:/a:redhat:rhel_e4s:8.6::appstream |
|
| Red Hat | Red Hat Enterprise Linux AppStream TUS (v.8.6) |
cpe:/a:redhat:rhel_tus:8.6::appstream |
|
| Red Hat | Red Hat Enterprise Linux AppStream E4S (v.8.8) |
cpe:/a:redhat:rhel_e4s:8.8::appstream |
|
| Red Hat | Red Hat Enterprise Linux AppStream TUS (v.8.8) |
cpe:/a:redhat:rhel_tus:8.8::appstream |
|
| Red Hat | Red Hat Enterprise Linux AppStream E4S (v.9.0) |
cpe:/a:redhat:rhel_e4s:9.0::appstream |
|
| Red Hat | Red Hat Enterprise Linux AppStream E4S (v.9.2) |
cpe:/a:redhat:rhel_e4s:9.2::appstream |
|
| Red Hat | Red Hat Enterprise Linux AppStream EUS (v.9.4) |
cpe:/a:redhat:rhel_eus:9.4::appstream |
|
| Red Hat | Red Hat Enterprise Linux AppStream EUS (v.9.6) |
cpe:/a:redhat:rhel_eus:9.6::appstream |
|
| Red Hat | Red Hat Enterprise Linux AppStream (v. 9) |
cpe:/a:redhat:enterprise_linux:9::appstream |
|
| 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 |
Credits
Andrew McCreight, Ashley Zebrowski, Brian Grinstead, Christian Holler, Maurice Dauer, Tom Schuster and the Mozilla Fuzzing Team
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}
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CVE-2026-6786 (GCVE-0-2026-6786)
Vulnerability from cvelistv5 – Published: 2026-04-21 12:41 – Updated: 2026-06-30 12:06
VLAI
EPSS
Title
Memory safety bugs fixed in Firefox ESR 140.10, Thunderbird ESR 140.10, Firefox 150 and Thunderbird 150
Summary
Memory safety bugs present in Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149. 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 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
35 references
Impacted products
21 products
Credits
Alex Franchuk, Andrew McCreight, Brian Grinstead, Christian Holler, Jan de Mooij, Maurice Dauer, Sebastian Hengst, Tom Schuster and the Mozilla Fuzzing Team
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"time": "2026-04-21T14:01:48.769Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-04-21T12:41:14.629Z",
"value": "Made public."
}
],
"title": "firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.10, Thunderbird ESR 140.10, Firefox 150 and Thunderbird 150",
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],
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"vendor": "Mozilla",
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"status": "unaffected",
"version": "140.10",
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"value": "Alex Franchuk, Andrew McCreight, Brian Grinstead, Christian Holler, Jan de Mooij, Maurice Dauer, Sebastian Hengst, Tom Schuster and the Mozilla Fuzzing Team"
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}
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"title": "Memory safety bugs fixed in Firefox ESR 140.10, Thunderbird ESR 140.10, Firefox 150 and Thunderbird 150"
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}
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Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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