CVE-2025-9185
published 2025-08-19CVE-2025-9185: Memory safety bugs present in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and…
PriorityP348high8.1CVSS 3.1
AVNACHPRNUINSUCHIHAH
EPSS
0.44%
35.7th percentile
Memory safety bugs present in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141. 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 142, Firefox ESR 115.27, Firefox ESR 128.14, Firefox ESR 140.2, Thunderbird 142, Thunderbird 128.14, and Thunderbird 140.2.
Affected
16 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | firefox | < firefox 142.0-1 (sid) | firefox 142.0-1 (sid) |
| debian | firefox-esr | < firefox 142.0-1 (sid) | firefox 142.0-1 (sid) |
| debian | thunderbird | < firefox 142.0-1 (sid) | firefox 142.0-1 (sid) |
| mozilla | firefox | < 115.27.0 | 115.27.0 |
| mozilla | firefox | < 142.0 | 142.0 |
| mozilla | firefox | — | — |
| mozilla | firefox | >= 128.0 < 128.14.0 | 128.14.0 |
| mozilla | firefox | >= 140.0 < 140.2.0 | 140.2.0 |
| mozilla | thunderbird | < 128.14.0 | 128.14.0 |
| mozilla | thunderbird | < 142.0 | 142.0 |
| mozilla | thunderbird | >= 0 < 1:128.14.0esr-1~deb11u1 | 1:128.14.0esr-1~deb11u1 |
| mozilla | thunderbird | >= 0 < 1:128.14.0esr-1~deb12u1 | 1:128.14.0esr-1~deb12u1 |
| mozilla | thunderbird | >= 0 < 1:128.14.0esr-1~deb13u1 | 1:128.14.0esr-1~deb13u1 |
| mozilla | thunderbird | >= 0 < 1:128.14.0esr-1 | 1:128.14.0esr-1 |
| mozilla | thunderbird | >= 140.0 < 140.2.0 | 140.2.0 |
| msrc | cbl2_bolt_0.9.2-2_on_cbl_mariner_2.0 | — | — |
CVSS provenance
nvdv3.18.1HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
osv8.1HIGH
vendor_msrc8.8HIGH
vendor_debian8.1HIGH
vendor_redhat8.1HIGH
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Ubuntu
Thunderbird vulnerabilities
vendor_ubuntu·2026-02-02
CVE-2025-8031 Thunderbird vulnerabilities
Title: Thunderbird vulnerabilities
Summary: Several security issues were fixed in Thunderbird.
Multiple security issues were discovered in Thunderbird. If a user were
tricked into opening a specially crafted website in a browsing context,
an attacker could potentially exploit these to cause a denial of service,
obtain sensitive information, bypass security restrictions, cross-site
tracing, or execute arbitrary code.
Instructions: In general, a standard system update will make all the necessary changes.
Red Hat
thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 115.27, Firefox ESR 128.14, Thunderbird ESR 128.14, Firefox ESR 140.2, Thunderbird ESR 140.2, Firefox 142 and Thunderbird 142
vendor_redhat·2025-08-19·CVSS 8.1
CVE-2025-9185 [HIGH] CWE-119 thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 115.27, Firefox ESR 128.14, Thunderbird ESR 128.14, Firefox ESR 140.2, Thunderbird ESR 140.2, Firefox 142 and Thunderbird 142
thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 115.27, Firefox ESR 128.14, Thunderbird ESR 128.14, Firefox ESR 140.2, Thunderbird ESR 140.2, Firefox 142 and Thunderbird 142
Memory safety bugs present in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141. 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 < 142, Firefox ESR < 115.27, Firefox ESR < 128.14, Firefox ESR < 140.2, Thunderbird < 142, Thunderbird < 128.14, and Thunderbird < 140.2.
A flaw was found in Thunderbird and Firefox. The Mozilla Foundation's Security Advisory describes the followin
Debian
CVE-2025-9185: firefox - Memory safety bugs present in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbir...
vendor_debian·2025·CVSS 8.1
CVE-2025-9185 [HIGH] CVE-2025-9185: firefox - Memory safety bugs present in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbir...
Memory safety bugs present in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141. 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 < 142, Firefox ESR < 115.27, Firefox ESR < 128.14, Firefox ESR < 140.2, Thunderbird < 142, Thunderbird < 128.14, and Thunderbird < 140.2.
Scope: local
sid: resolved (fixed in 142.0-1)
Microsoft
Controller/Async/FilesystemManager.php in the filemanager in Bolt allows remote attacke
vendor_msrc·2019-03-12·CVSS 8.8
CVE-2019-9185 [HIGH] Controller/Async/FilesystemManager.php in the filemanager in Bolt allows remote attacke
Controller/Async/FilesystemManager.php in the filemanager in Bolt allows remote attacke
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
mitre: mitre
Customer Action Required: Yes
Remediation: CBL-Mariner Re
Mozilla
Mozilla Foundation Security Advisory 2025-71: CVE-2025-9185
vendor_mozilla·CVSS 8.1
CVE-2025-9185 [HIGH] Mozilla Foundation Security Advisory 2025-71: CVE-2025-9185
Mozilla Foundation Security Advisory 2025-71
CVE: CVE-2025-9185
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 128.14
Mozilla
Mozilla Foundation Security Advisory 2025-65: CVE-2025-9185
vendor_mozilla·CVSS 8.1
CVE-2025-9185 [HIGH] Mozilla Foundation Security Advisory 2025-65: CVE-2025-9185
Mozilla Foundation Security Advisory 2025-65
CVE: CVE-2025-9185
Product: Firefox ESR
Impact: high
Fixed in: Firefox ESR 115.27
Mozilla
Mozilla Foundation Security Advisory 2025-70: CVE-2025-9185
vendor_mozilla·CVSS 8.1
CVE-2025-9185 [HIGH] Mozilla Foundation Security Advisory 2025-70: CVE-2025-9185
Mozilla Foundation Security Advisory 2025-70
CVE: CVE-2025-9185
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 142
Mozilla
Mozilla Foundation Security Advisory 2025-72: CVE-2025-9185
vendor_mozilla·CVSS 8.1
CVE-2025-9185 [HIGH] Mozilla Foundation Security Advisory 2025-72: CVE-2025-9185
Mozilla Foundation Security Advisory 2025-72
CVE: CVE-2025-9185
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 140.2
Mozilla
Mozilla Foundation Security Advisory 2025-66: CVE-2025-9185
vendor_mozilla·CVSS 8.1
CVE-2025-9185 [HIGH] Mozilla Foundation Security Advisory 2025-66: CVE-2025-9185
Mozilla Foundation Security Advisory 2025-66
CVE: CVE-2025-9185
Product: Firefox ESR
Impact: high
Fixed in: Firefox ESR 128.14
Mozilla
Mozilla Foundation Security Advisory 2025-64: CVE-2025-9185
vendor_mozilla·CVSS 8.1
CVE-2025-9185 [HIGH] Mozilla Foundation Security Advisory 2025-64: CVE-2025-9185
Mozilla Foundation Security Advisory 2025-64
CVE: CVE-2025-9185
Product: Firefox
Impact: high
Fixed in: Firefox 142
Mozilla
Mozilla Foundation Security Advisory 2025-67: CVE-2025-9185
vendor_mozilla·CVSS 8.1
CVE-2025-9185 [HIGH] Mozilla Foundation Security Advisory 2025-67: CVE-2025-9185
Mozilla Foundation Security Advisory 2025-67
CVE: CVE-2025-9185
Product: Firefox ESR
Impact: high
Fixed in: Firefox ESR 140.2
OSV
CVE-2025-9185: Memory safety bugs present in Firefox ESR 115
osv·2025-08-19·CVSS 8.1
CVE-2025-9185 [HIGH] CVE-2025-9185: Memory safety bugs present in Firefox ESR 115
Memory safety bugs present in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141. 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 < 142, Firefox ESR < 115.27, Firefox ESR < 128.14, Firefox ESR < 140.2, Thunderbird < 142, Thunderbird < 128.14, and Thunderbird < 140.2.
GHSA
GHSA-2hgr-r3c9-m9jw: Memory safety bugs present in Firefox ESR 115
ghsa_unreviewed·2025-08-19
CVE-2025-9185 [HIGH] CWE-119 GHSA-2hgr-r3c9-m9jw: Memory safety bugs present in Firefox ESR 115
Memory safety bugs present in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141. 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 < 142, Firefox ESR < 115.27, Firefox ESR < 128.14, Firefox ESR < 140.2, Thunderbird < 142, Thunderbird < 128.14, and Thunderbird < 140.2.
No detection rules found.
No public exploits indexed.
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1970154%2C1976782%2C1977166https://www.mozilla.org/security/advisories/mfsa2025-64/https://www.mozilla.org/security/advisories/mfsa2025-65/https://www.mozilla.org/security/advisories/mfsa2025-66/https://www.mozilla.org/security/advisories/mfsa2025-67/https://www.mozilla.org/security/advisories/mfsa2025-70/https://www.mozilla.org/security/advisories/mfsa2025-71/https://www.mozilla.org/security/advisories/mfsa2025-72/https://lists.debian.org/debian-lts-announce/2025/08/msg00016.htmlhttps://lists.debian.org/debian-lts-announce/2025/08/msg00018.html
2025-08-19
Published