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SUSE-SU-2025:03291-1 Not scored

Security update for MozillaFirefox

This update for MozillaFirefox fixes the following issues: Firefox Extended Support Release 140.3.0 ESR (bsc#1249391). MFSA 2025-75: * CVE-2025-10527 (bmo#1984825) Sandbox escape due to use-after-free in the Graphics: Canvas2D component * CVE-2025-10528 (bmo#1986185) Sandbox escape due to undefined behavior, invalid pointer in the Graphics: Canvas2D component * CVE-2025-10529 (bmo#1970490) Same-origin policy bypass in the Layout component * CVE-2025-10532 (bmo#1979502) Incorrect boundary conditions in the JavaScript: GC component * CVE-2025-10533 (bmo#1980788) Integer overflow in the SVG component * CVE-2025-10536 (bmo#1981502) Information disclosure in the Networking: Cache component * CVE-2025-10537 (bmo#1938220, bmo#1980730, bmo#1981280, bmo#1981283, bmo#1984505, bmo#1985067) Memory safety bugs fixed in Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143

Exploit probability Not scored
Published September 22, 2025
Required by Not available
Last source change March 23, 2026

02 / AFFECTED SOFTWARE

Affected packages

SUSE:Enterprise Storage 7.1 MozillaFirefox
SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS MozillaFirefox
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS MozillaFirefox
SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS MozillaFirefox
SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS MozillaFirefox
SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS MozillaFirefox
SUSE:Linux Enterprise Module for Desktop Applications 15 SP6 MozillaFirefox
SUSE:Linux Enterprise Module for Desktop Applications 15 SP7 MozillaFirefox
SUSE:Linux Enterprise Server 15 SP3-LTSS MozillaFirefox
SUSE:Linux Enterprise Server 15 SP4-LTSS MozillaFirefox
SUSE:Linux Enterprise Server 15 SP5-LTSS MozillaFirefox
SUSE:Linux Enterprise Server for SAP Applications 15 SP3 MozillaFirefox
SUSE:Linux Enterprise Server for SAP Applications 15 SP4 MozillaFirefox
SUSE:Linux Enterprise Server for SAP Applications 15 SP5 MozillaFirefox
openSUSE:Leap 15.6 MozillaFirefox

03 / CONNECTIONS

Connected vulnerabilities

04 / EVIDENCE

Source records

Open Source Vulnerabilities SUSE-SU-2025:03291-1

This update for MozillaFirefox fixes the following issues: Firefox Extended Support Release 140.3.0 ESR (bsc#1249391). MFSA 2025-75: * CVE-2025-10527 (bmo#1984825) Sandbox escape due to use-after-free in the Graphics: Canvas2D component * CVE-2025-10528 (bmo#1986185) Sandbox escape due to undefined behavior, invalid pointer in the Graphics: Canvas2D component * CVE-2025-10529 (bmo#1970490) Same-origin policy bypass in the Layout component * CVE-2025-10532 (bmo#1979502) Incorrect boundary conditions in the JavaScript: GC component * CVE-2025-10533 (bmo#1980788) Integer overflow in the SVG component * CVE-2025-10536 (bmo#1981502) Information disclosure in the Networking: Cache component * CVE-2025-10537 (bmo#1938220, bmo#1980730, bmo#1981280, bmo#1981283, bmo#1984505, bmo#1985067) Memory safety bugs fixed in Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143

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05 / REFERENCES

Further evidence