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alsa-2025:7506
Vulnerability from osv_almalinux
Published
2025-05-13 00:00
Modified
2025-07-02 12:27
Summary
Important: firefox security update
Details
Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.
Security Fix(es):
- firefox: thunderbird: Privilege escalation in Firefox Updater (CVE-2025-2817)
- firefox: thunderbird: Unsafe attribute access during XPath parsing (CVE-2025-4087)
- firefox: thunderbird: Process isolation bypass using "javascript:" URI links in cross-origin frames (CVE-2025-4083)
- firefox: thunderbird: Memory safety bugs fixed in Firefox 138, Thunderbird 138, Firefox ESR 128.10, and Thunderbird 128.10 (CVE-2025-4091)
- firefox: thunderbird: Memory safety bug fixed in Firefox ESR 128.10 and Thunderbird 128.10 (CVE-2025-4093)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
{
"affected": [
{
"package": {
"ecosystem": "AlmaLinux:10",
"name": "firefox"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "128.10.0-1.el10_0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"details": "Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. \n\nSecurity Fix(es): \n\n * firefox: thunderbird: Privilege escalation in Firefox Updater (CVE-2025-2817)\n * firefox: thunderbird: Unsafe attribute access during XPath parsing (CVE-2025-4087)\n * firefox: thunderbird: Process isolation bypass using \"javascript:\" URI links in cross-origin frames (CVE-2025-4083)\n * firefox: thunderbird: Memory safety bugs fixed in Firefox 138, Thunderbird 138, Firefox ESR 128.10, and Thunderbird 128.10 (CVE-2025-4091)\n * firefox: thunderbird: Memory safety bug fixed in Firefox ESR 128.10 and Thunderbird 128.10 (CVE-2025-4093)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n",
"id": "ALSA-2025:7506",
"modified": "2025-07-02T12:27:26Z",
"published": "2025-05-13T00:00:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://access.redhat.com/errata/RHSA-2025:7506"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2025-2817"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2025-4083"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2025-4087"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2025-4091"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2025-4093"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2362902"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2362904"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2362907"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2362912"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2362915"
},
{
"type": "ADVISORY",
"url": "https://errata.almalinux.org/10/ALSA-2025-7506.html"
}
],
"related": [
"CVE-2025-2817",
"CVE-2025-4087",
"CVE-2025-4083",
"CVE-2025-4091",
"CVE-2025-4093"
],
"summary": "Important: firefox security update"
}
CVE-2025-2817 (GCVE-0-2025-2817)
Vulnerability from cvelistv5 – Published: 2025-04-29 13:13 – Updated: 2026-02-26 18:27
VLAI?
EPSS
Summary
Thunderbird's update mechanism allowed a medium-integrity user process to interfere with the SYSTEM-level updater by manipulating the file-locking behavior. By injecting code into the user-privileged process, an attacker could bypass intended access controls, allowing SYSTEM-level file operations on paths controlled by a non-privileged user and enabling privilege escalation. This vulnerability affects Firefox < 138, Firefox ESR < 128.10, Firefox ESR < 115.23, Thunderbird < 138, and Thunderbird < 128.10.
Severity ?
8.8 (High)
CWE
- Privilege escalation in Thunderbird Updater
Assigner
References
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 138
(custom)
|
||||||||||||||||||||||
|
||||||||||||||||||||||||
Credits
Dong-uk Kim (@justlikebono)
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CVE-2025-4083 (GCVE-0-2025-4083)
Vulnerability from cvelistv5 – Published: 2025-04-29 13:13 – Updated: 2025-11-03 19:58
VLAI?
EPSS
Summary
A process isolation vulnerability in Thunderbird 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. This vulnerability affects Firefox < 138, Firefox ESR < 128.10, Firefox ESR < 115.23, Thunderbird < 138, and Thunderbird < 128.10.
Severity ?
9.1 (Critical)
CWE
- Process isolation bypass using "javascript:" URI links in cross-origin frames
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 138
(custom)
|
||||||||||||||||||||||
|
||||||||||||||||||||||||
Credits
Nika Layzell
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CVE-2025-4093 (GCVE-0-2025-4093)
Vulnerability from cvelistv5 – Published: 2025-04-29 13:13 – Updated: 2025-11-03 19:58
VLAI?
EPSS
Summary
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. This vulnerability affects Firefox ESR < 128.10 and Thunderbird < 128.10.
Severity ?
8.1 (High)
CWE
- Memory safety bug fixed in Firefox ESR 128.10 and Thunderbird 128.10
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox ESR |
Affected:
unspecified , < 128.10
(custom)
|
|||||||
|
|||||||||
Credits
Andrew McCreight
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CVE-2025-4091 (GCVE-0-2025-4091)
Vulnerability from cvelistv5 – Published: 2025-04-29 13:13 – Updated: 2025-11-03 19:58
VLAI?
EPSS
Summary
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. This vulnerability affects Firefox < 138, Firefox ESR < 128.10, Thunderbird < 138, and Thunderbird < 128.10.
Severity ?
8.1 (High)
CWE
- Memory safety bugs fixed in Firefox 138, Thunderbird 138, Firefox ESR 128.10, and Thunderbird 128.10
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 138
(custom)
|
|||||||||||||||||
|
|||||||||||||||||||
Credits
Maurice Dauer and the Mozilla Fuzzing Team
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CVE-2025-4087 (GCVE-0-2025-4087)
Vulnerability from cvelistv5 – Published: 2025-04-29 13:13 – Updated: 2025-11-03 19:58
VLAI?
EPSS
Summary
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. This vulnerability affects Firefox < 138, Firefox ESR < 128.10, Thunderbird < 138, and Thunderbird < 128.10.
Severity ?
4.8 (Medium)
CWE
- Unsafe attribute access during XPath parsing
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 138
(custom)
|
|||||||||||||||||
|
|||||||||||||||||||
Credits
Ivan Fratric
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"url": "https://www.mozilla.org/security/advisories/mfsa2025-31/"
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Sightings
| Author | Source | Type | Date |
|---|
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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