Vulnerabilities
Misconfiguration
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CVE Vulnerabilities

CVE-2025-1010

Use After Free

Published: Feb 04, 2025 | Modified: Nov 03, 2025
CVSS 3.x
8.8
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.x
RedHat/V2
RedHat/V3
8.8 IMPORTANT
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2025-1010
CWEhttps://cwe.mitre.org/data/definitions/416.html

An attacker could have caused a use-after-free via the Custom Highlight API, leading to a potentially exploitable crash. This vulnerability affects Firefox < 135, Firefox ESR < 115.20, Firefox ESR < 128.7, Thunderbird < 128.7, and Thunderbird < 135.

Weakness

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.

Affected Software

NameVendorStart VersionEnd Version
FirefoxMozilla*115.20.0 (excluding)
FirefoxMozilla*135.0 (excluding)
FirefoxMozilla128.1.0 (including)128.7.0 (excluding)
ThunderbirdMozilla128.0.1 (including)128.7.0 (excluding)
ThunderbirdMozilla131.0 (including)135.0 (excluding)
Red Hat Enterprise Linux 7 Extended Lifecycle SupportRedHatfirefox-0:128.7.0-1.el7_9*
Red Hat Enterprise Linux 8RedHatfirefox-0:128.7.0-1.el8_10*
Red Hat Enterprise Linux 8RedHatthunderbird-0:128.7.0-1.el8_10*
Red Hat Enterprise Linux 8.2 Advanced Update SupportRedHatfirefox-0:128.7.0-1.el8_2*
Red Hat Enterprise Linux 8.2 Advanced Update SupportRedHatthunderbird-0:128.7.0-1.el8_2*
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRedHatfirefox-0:128.7.0-1.el8_4*
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRedHatthunderbird-0:128.7.0-1.el8_4*
Red Hat Enterprise Linux 8.4 Telecommunications Update ServiceRedHatfirefox-0:128.7.0-1.el8_4*
Red Hat Enterprise Linux 8.4 Telecommunications Update ServiceRedHatthunderbird-0:128.7.0-1.el8_4*
Red Hat Enterprise Linux 8.4 Update Services for SAP SolutionsRedHatfirefox-0:128.7.0-1.el8_4*
Red Hat Enterprise Linux 8.4 Update Services for SAP SolutionsRedHatthunderbird-0:128.7.0-1.el8_4*
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRedHatfirefox-0:128.7.0-1.el8_6*
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRedHatthunderbird-0:128.7.0-1.el8_6*
Red Hat Enterprise Linux 8.6 Telecommunications Update ServiceRedHatfirefox-0:128.7.0-1.el8_6*
Red Hat Enterprise Linux 8.6 Telecommunications Update ServiceRedHatthunderbird-0:128.7.0-1.el8_6*
Red Hat Enterprise Linux 8.6 Update Services for SAP SolutionsRedHatfirefox-0:128.7.0-1.el8_6*
Red Hat Enterprise Linux 8.6 Update Services for SAP SolutionsRedHatthunderbird-0:128.7.0-1.el8_6*
Red Hat Enterprise Linux 8.8 Extended Update SupportRedHatfirefox-0:128.7.0-1.el8_8*
Red Hat Enterprise Linux 8.8 Extended Update SupportRedHatthunderbird-0:128.7.0-1.el8_8*
Red Hat Enterprise Linux 9RedHatfirefox-0:128.7.0-1.el9_5*
Red Hat Enterprise Linux 9RedHatthunderbird-0:128.7.0-1.el9_5*
Red Hat Enterprise Linux 9.0 Update Services for SAP SolutionsRedHatfirefox-0:128.7.0-1.el9_0*
Red Hat Enterprise Linux 9.0 Update Services for SAP SolutionsRedHatthunderbird-0:128.7.0-1.el9_0*
Red Hat Enterprise Linux 9.2 Extended Update SupportRedHatfirefox-0:128.7.0-1.el9_2*
Red Hat Enterprise Linux 9.2 Extended Update SupportRedHatthunderbird-0:128.7.0-1.el9_2*
Red Hat Enterprise Linux 9.4 Extended Update SupportRedHatfirefox-0:128.7.0-1.el9_4*
Red Hat Enterprise Linux 9.4 Extended Update SupportRedHatthunderbird-0:128.7.0-1.el9_4*
FirefoxUbuntufocal*
Mozjs102Ubuntuesm-apps/noble*
Mozjs102Ubuntujammy*
Mozjs102Ubuntunoble*
Mozjs115Ubuntunoble*
Mozjs115Ubuntuoracular*
Mozjs115Ubuntuplucky*
Mozjs52Ubuntuesm-infra/bionic*
Mozjs52Ubuntufocal*
Mozjs68Ubuntuesm-infra/focal*
Mozjs68Ubuntufocal*
Mozjs78Ubuntujammy*
Mozjs91Ubuntujammy*
ThunderbirdUbuntufocal*
ThunderbirdUbuntujammy*
ThunderbirdUbuntuupstream*

Potential Mitigations

References

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