Is CVE-2025-10529 in the CISA KEV catalog?

No. CVE-2025-10529 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-10529?

CVE-2025-10529 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2025-10529?

CVE-2025-10529 has an EPSS score of 0.28% (20th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-10529?

Upgrade firefox on debian unstable to 143.0-1 or later. Fixes are available for 19 affected products.

CVE & CISA-KEV Catalog

CVE-2025-10529

MEDIUM

6.5

CVSS v3

NVD

Description

Same-origin policy bypass in the Layout component. This vulnerability was fixed in Firefox 143, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3.

CWE-942

How to fix

Remediation Available

firefoxDebian

Fixed in:143.0-1CVE-2025-10529

firefoxRocky

Fixed in:0:140.3.0-1.el10_0RHSA-2025:16109

Fixed in:0:140.3.0-1.el7_9.ppc64RHSA-2025:17453

Fixed in:0:140.3.0-1.el7_9RHSA-2025:17453

Fixed in:0:140.3.0-1.el8_4RHSA-2025:17371

Fixed in:0:140.3.0-1.el8_10RHSA-2025:16260

Fixed in:0:140.3.0-1.el8_2RHSA-2025:17372

Fixed in:0:140.3.0-1.el8_10RHSA-2025:16260

Fixed in:0:140.3.0-1.el8_2RHSA-2025:17372

Fixed in:0:140.3.0-1.el8_6RHSA-2025:17367

Fixed in:0:140.3.0-1.el8_10RHSA-2025:16260

Fixed in:0:140.3.0-1.el8_8RHSA-2025:17368

Fixed in:0:140.3.0-1.el8_6RHSA-2025:17367

Fixed in:0:140.3.0-1.el8_8RHSA-2025:17368

Fixed in:0:140.3.0-1.el8_6RHSA-2025:17367

Fixed in:0:140.3.0-1.el8_8RHSA-2025:17368

Fixed in:0:140.3.0-1.el8_6RHSA-2025:17367

Fixed in:0:140.3.0-1.el9_0RHSA-2025:17373

Fixed in:0:140.3.0-1.el9_4RHSA-2025:17378

Fixed in:0:140.3.0-1.el9_6RHSA-2025:16108

Fixed in:0:140.3.0-1.el9_2RHSA-2025:17374

firefoxRed Hat / RHEL

Fixed in:0:140.3.0-1.el10_0RHSA-2025:16109

Fixed in:0:140.3.0-1.el7_9RHSA-2025:17453

Fixed in:0:140.3.0-1.el7_9.ppc64RHSA-2025:17453

Fixed in:0:140.3.0-1.el7_9RHSA-2025:17453

Fixed in:0:140.3.0-1.el8_8RHSA-2025:17368

Fixed in:0:140.3.0-1.el8_6RHSA-2025:17367

Fixed in:0:140.3.0-1.el8_4RHSA-2025:17371

Fixed in:0:140.3.0-1.el8_8RHSA-2025:17368

Fixed in:0:140.3.0-1.el8_4RHSA-2025:17371

Fixed in:0:140.3.0-1.el8_6RHSA-2025:17367

Fixed in:0:140.3.0-1.el8_10RHSA-2025:16260

Fixed in:0:140.3.0-1.el8_6RHSA-2025:17367

Fixed in:0:140.3.0-1.el8_10RHSA-2025:16260

Fixed in:0:140.3.0-1.el8_2RHSA-2025:17372

Fixed in:0:140.3.0-1.el8_8RHSA-2025:17368

Fixed in:0:140.3.0-1.el9_2RHSA-2025:17374

Fixed in:0:140.3.0-1.el9_0RHSA-2025:17373

Fixed in:0:140.3.0-1.el9_4RHSA-2025:17378

Fixed in:0:140.3.0-1.el9_0RHSA-2025:17373

Fixed in:0:140.3.0-1.el9_4RHSA-2025:17378

Fixed in:0:140.3.0-1.el9_0RHSA-2025:17373

Fixed in:0:140.3.0-1.el9_6RHSA-2025:16108

Fixed in:0:140.3.0-1.el9_2RHSA-2025:17374

firefox-debuginfoRocky

Fixed in:0:140.3.0-1.el10_0RHSA-2025:16109

Fixed in:0:140.3.0-1.el7_9RHSA-2025:17453

Fixed in:0:140.3.0-1.el7_9.ppc64RHSA-2025:17453

Fixed in:0:140.3.0-1.el8_6RHSA-2025:17367

Fixed in:0:140.3.0-1.el8_10RHSA-2025:16260

Fixed in:0:140.3.0-1.el8_6RHSA-2025:17367

Fixed in:0:140.3.0-1.el8_4RHSA-2025:17371

Fixed in:0:140.3.0-1.el8_2RHSA-2025:17372

Fixed in:0:140.3.0-1.el8_8RHSA-2025:17368

Fixed in:0:140.3.0-1.el8_6RHSA-2025:17367

Fixed in:0:140.3.0-1.el9_4RHSA-2025:17378

Fixed in:0:140.3.0-1.el9_0RHSA-2025:17373

Fixed in:0:140.3.0-1.el9_4RHSA-2025:17378

Fixed in:0:140.3.0-1.el9_0RHSA-2025:17373

Fixed in:0:140.3.0-1.el9_4RHSA-2025:17378

Fixed in:0:140.3.0-1.el9_2RHSA-2025:17374

Fixed in:0:140.3.0-1.el9_6RHSA-2025:16108

Fixed in:0:140.3.0-1.el9_2RHSA-2025:17374

Fixed in:0:140.3.0-1.el9_6RHSA-2025:16108

Fixed in:0:140.3.0-1.el9_4RHSA-2025:17378

Fixed in:0:140.3.0-1.el9_6RHSA-2025:16108

Fixed in:0:140.3.0-1.el9_2RHSA-2025:17374

Fixed in:0:140.3.0-1.el9_6RHSA-2025:16108

Fixed in:0:140.3.0-1.el9_2RHSA-2025:17374

firefox-debuginfoRed Hat / RHEL

Fixed in:0:140.3.0-1.el10_0RHSA-2025:16109

Fixed in:0:140.3.0-1.el7_9.ppc64RHSA-2025:17453

Fixed in:0:140.3.0-1.el7_9RHSA-2025:17453

Fixed in:0:140.3.0-1.el8_4RHSA-2025:17371

Fixed in:0:140.3.0-1.el8_6RHSA-2025:17367

Fixed in:0:140.3.0-1.el8_8RHSA-2025:17368

Fixed in:0:140.3.0-1.el8_2RHSA-2025:17372

Fixed in:0:140.3.0-1.el8_10RHSA-2025:16260

Fixed in:0:140.3.0-1.el9_6RHSA-2025:16108

Fixed in:0:140.3.0-1.el9_4RHSA-2025:17378

Fixed in:0:140.3.0-1.el9_0RHSA-2025:17373

Fixed in:0:140.3.0-1.el9_2RHSA-2025:17374

Fixed in:0:140.3.0-1.el9_6RHSA-2025:16108

Fixed in:0:140.3.0-1.el9_2RHSA-2025:17374

Fixed in:0:140.3.0-1.el9_6RHSA-2025:16108

Fixed in:0:140.3.0-1.el9_2RHSA-2025:17374

Fixed in:0:140.3.0-1.el9_6RHSA-2025:16108

Fixed in:0:140.3.0-1.el9_2RHSA-2025:17374

firefox-debugsourceRed Hat / RHEL

Fixed in:0:140.3.0-1.el10_0RHSA-2025:16109

Fixed in:0:140.3.0-1.el8_6RHSA-2025:17367

Fixed in:0:140.3.0-1.el8_2RHSA-2025:17372

Fixed in:0:140.3.0-1.el8_6RHSA-2025:17367

Fixed in:0:140.3.0-1.el8_10RHSA-2025:16260

Fixed in:0:140.3.0-1.el8_4RHSA-2025:17371

Fixed in:0:140.3.0-1.el8_8RHSA-2025:17368

Fixed in:0:140.3.0-1.el8_10RHSA-2025:16260

Fixed in:0:140.3.0-1.el8_6RHSA-2025:17367

Fixed in:0:140.3.0-1.el8_10RHSA-2025:16260

Fixed in:0:140.3.0-1.el8_8RHSA-2025:17368

Fixed in:0:140.3.0-1.el8_10RHSA-2025:16260

Fixed in:0:140.3.0-1.el9_0RHSA-2025:17373

Fixed in:0:140.3.0-1.el9_4RHSA-2025:17378

Fixed in:0:140.3.0-1.el9_2RHSA-2025:17374

Fixed in:0:140.3.0-1.el9_6RHSA-2025:16108

firefox-debugsourceRocky

Fixed in:0:140.3.0-1.el10_0RHSA-2025:16109

Fixed in:0:140.3.0-1.el8_8RHSA-2025:17368

Fixed in:0:140.3.0-1.el8_6RHSA-2025:17367

Fixed in:0:140.3.0-1.el8_8RHSA-2025:17368

Fixed in:0:140.3.0-1.el8_10RHSA-2025:16260

Fixed in:0:140.3.0-1.el8_6RHSA-2025:17367

Fixed in:0:140.3.0-1.el8_10RHSA-2025:16260

Fixed in:0:140.3.0-1.el8_4RHSA-2025:17371

Fixed in:0:140.3.0-1.el8_10RHSA-2025:16260

Fixed in:0:140.3.0-1.el8_6RHSA-2025:17367

Fixed in:0:140.3.0-1.el8_2RHSA-2025:17372

Fixed in:0:140.3.0-1.el9_4RHSA-2025:17378

Fixed in:0:140.3.0-1.el9_0RHSA-2025:17373

Fixed in:0:140.3.0-1.el9_4RHSA-2025:17378

Fixed in:0:140.3.0-1.el9_2RHSA-2025:17374

Fixed in:0:140.3.0-1.el9_6RHSA-2025:16108

firefox-x11Red Hat / RHEL

Fixed in:0:140.3.0-1.el9_4RHSA-2025:17378

Fixed in:0:140.3.0-1.el9_2RHSA-2025:17374

Fixed in:0:140.3.0-1.el9_4RHSA-2025:17378

Fixed in:0:140.3.0-1.el9_6RHSA-2025:16108

Fixed in:0:140.3.0-1.el9_2RHSA-2025:17374

Fixed in:0:140.3.0-1.el9_6RHSA-2025:16108

Fixed in:0:140.3.0-1.el9_2RHSA-2025:17374

Fixed in:0:140.3.0-1.el9_4RHSA-2025:17378

Fixed in:0:140.3.0-1.el9_6RHSA-2025:16108

Fixed in:0:140.3.0-1.el9_2RHSA-2025:17374

Fixed in:0:140.3.0-1.el9_4RHSA-2025:17378

Fixed in:0:140.3.0-1.el9_6RHSA-2025:16108

firefox-x11Rocky

Fixed in:0:140.3.0-1.el9_4RHSA-2025:17378

Fixed in:0:140.3.0-1.el9_6RHSA-2025:16108

Fixed in:0:140.3.0-1.el9_2RHSA-2025:17374

Fixed in:0:140.3.0-1.el9_6RHSA-2025:16108

Fixed in:0:140.3.0-1.el9_4RHSA-2025:17378

Fixed in:0:140.3.0-1.el9_6RHSA-2025:16108

Fixed in:0:140.3.0-1.el9_4RHSA-2025:17378

thunderbirdRed Hat / RHEL

Fixed in:0:140.3.0-1.el10_0RHSA-2025:16157

Fixed in:0:140.3.0-1.el8_6RHSA-2025:17342

Fixed in:0:140.3.0-1.el8_8RHSA-2025:17343

Fixed in:0:140.3.0-1.el8_4RHSA-2025:17341

Fixed in:0:140.3.0-1.el8_2RHSA-2025:17340

Fixed in:0:140.3.0-1.el8_10RHSA-2025:16589

Fixed in:0:140.3.0-1.el8_4RHSA-2025:17341

Fixed in:0:140.3.0-1.el8_10RHSA-2025:16589

Fixed in:0:140.3.0-1.el8_6RHSA-2025:17342

Fixed in:0:140.3.0-1.el8_8RHSA-2025:17343

Fixed in:0:140.3.0-1.el9_0RHSA-2025:17344

Fixed in:0:140.3.0-1.el9_2RHSA-2025:17345

Fixed in:0:140.3.0-1.el9_6RHSA-2025:16156

Fixed in:0:140.3.0-1.el9_0RHSA-2025:17344

Fixed in:0:140.3.0-1.el9_4RHSA-2025:17346

Fixed in:0:140.3.0-1.el9_2RHSA-2025:17345

Fixed in:0:140.3.0-1.el9_4RHSA-2025:17346

Fixed in:0:140.3.0-1.el9_2RHSA-2025:17345

Fixed in:0:140.3.0-1.el9_4RHSA-2025:17346

Fixed in:0:140.3.0-1.el9_6RHSA-2025:16156

Fixed in:0:140.3.0-1.el9_2RHSA-2025:17345

Fixed in:0:140.3.0-1.el9_6RHSA-2025:16156

Fixed in:0:140.3.0-1.el9_0RHSA-2025:17344

Fixed in:0:140.3.0-1.el9_6RHSA-2025:16156

Fixed in:0:140.3.0-1.el9_0RHSA-2025:17344

Fixed in:0:140.3.0-1.el9_4RHSA-2025:17346

Fixed in:0:140.3.0-1.el9_0RHSA-2025:17344

Fixed in:0:140.3.0-1.el9_6RHSA-2025:16156

thunderbirdRocky

Fixed in:0:140.3.0-1.el10_0RHSA-2025:16157

Fixed in:0:140.3.0-1.el8_4RHSA-2025:17341

Fixed in:0:140.3.0-1.el8_2RHSA-2025:17340

Fixed in:0:140.3.0-1.el8_10RHSA-2025:16589

Fixed in:0:140.3.0-1.el8_2RHSA-2025:17340

Fixed in:0:140.3.0-1.el8_10RHSA-2025:16589

Fixed in:0:140.3.0-1.el8_6RHSA-2025:17342

Fixed in:0:140.3.0-1.el8_8RHSA-2025:17343

Fixed in:0:140.3.0-1.el8_10RHSA-2025:16589

Fixed in:0:140.3.0-1.el9_0RHSA-2025:17344

Fixed in:0:140.3.0-1.el9_6RHSA-2025:16156

Fixed in:0:140.3.0-1.el9_2RHSA-2025:17345

Fixed in:0:140.3.0-1.el9_6RHSA-2025:16156

Fixed in:0:140.3.0-1.el9_4RHSA-2025:17346

Fixed in:0:140.3.0-1.el9_0RHSA-2025:17344

Fixed in:0:140.3.0-1.el9_4RHSA-2025:17346

Fixed in:0:140.3.0-1.el9_6RHSA-2025:16156

Fixed in:0:140.3.0-1.el9_4RHSA-2025:17346

Fixed in:0:140.3.0-1.el9_2RHSA-2025:17345

Fixed in:0:140.3.0-1.el9_4RHSA-2025:17346

Fixed in:0:140.3.0-1.el9_2RHSA-2025:17345

Fixed in:0:140.3.0-1.el9_0RHSA-2025:17344

Fixed in:0:140.3.0-1.el9_2RHSA-2025:17345

Fixed in:0:140.3.0-1.el9_6RHSA-2025:16156

Fixed in:0:140.3.0-1.el9_0RHSA-2025:17344

thunderbird-debuginfoRocky

Fixed in:0:140.3.0-1.el10_0RHSA-2025:16157

Fixed in:0:140.3.0-1.el8_10RHSA-2025:16589

Fixed in:0:140.3.0-1.el8_8RHSA-2025:17343

Fixed in:0:140.3.0-1.el8_10RHSA-2025:16589

Fixed in:0:140.3.0-1.el8_6RHSA-2025:17342

Fixed in:0:140.3.0-1.el8_4RHSA-2025:17341

Fixed in:0:140.3.0-1.el8_2RHSA-2025:17340

Fixed in:0:140.3.0-1.el8_8RHSA-2025:17343

Fixed in:0:140.3.0-1.el9_6RHSA-2025:16156

Fixed in:0:140.3.0-1.el9_4RHSA-2025:17346

Fixed in:0:140.3.0-1.el9_2RHSA-2025:17345

Fixed in:0:140.3.0-1.el9_6RHSA-2025:16156

Fixed in:0:140.3.0-1.el9_0RHSA-2025:17344

Fixed in:0:140.3.0-1.el9_2RHSA-2025:17345

thunderbird-debuginfoRed Hat / RHEL

Fixed in:0:140.3.0-1.el10_0RHSA-2025:16157

Fixed in:0:140.3.0-1.el8_10RHSA-2025:16589

Fixed in:0:140.3.0-1.el8_2RHSA-2025:17340

Fixed in:0:140.3.0-1.el8_6RHSA-2025:17342

Fixed in:0:140.3.0-1.el8_4RHSA-2025:17341

Fixed in:0:140.3.0-1.el8_8RHSA-2025:17343

Fixed in:0:140.3.0-1.el8_10RHSA-2025:16589

Fixed in:0:140.3.0-1.el8_8RHSA-2025:17343

Fixed in:0:140.3.0-1.el8_10RHSA-2025:16589

Fixed in:0:140.3.0-1.el9_4RHSA-2025:17346

Fixed in:0:140.3.0-1.el9_2RHSA-2025:17345

Fixed in:0:140.3.0-1.el9_6RHSA-2025:16156

Fixed in:0:140.3.0-1.el9_0RHSA-2025:17344

thunderbird-debugsourceRocky

Fixed in:0:140.3.0-1.el10_0RHSA-2025:16157

Fixed in:0:140.3.0-1.el8_4RHSA-2025:17341

Fixed in:0:140.3.0-1.el8_8RHSA-2025:17343

Fixed in:0:140.3.0-1.el8_6RHSA-2025:17342

Fixed in:0:140.3.0-1.el8_2RHSA-2025:17340

Fixed in:0:140.3.0-1.el8_6RHSA-2025:17342

Fixed in:0:140.3.0-1.el8_10RHSA-2025:16589

Fixed in:0:140.3.0-1.el8_6RHSA-2025:17342

Fixed in:0:140.3.0-1.el8_8RHSA-2025:17343

Fixed in:0:140.3.0-1.el8_10RHSA-2025:16589

Fixed in:0:140.3.0-1.el9_2RHSA-2025:17345

Fixed in:0:140.3.0-1.el9_0RHSA-2025:17344

Fixed in:0:140.3.0-1.el9_2RHSA-2025:17345

Fixed in:0:140.3.0-1.el9_4RHSA-2025:17346

Fixed in:0:140.3.0-1.el9_6RHSA-2025:16156

Fixed in:0:140.3.0-1.el9_2RHSA-2025:17345

thunderbird-debugsourceRed Hat / RHEL

Fixed in:0:140.3.0-1.el10_0RHSA-2025:16157

Fixed in:0:140.3.0-1.el8_8RHSA-2025:17343

Fixed in:0:140.3.0-1.el8_10RHSA-2025:16589

Fixed in:0:140.3.0-1.el8_6RHSA-2025:17342

Fixed in:0:140.3.0-1.el8_10RHSA-2025:16589

Fixed in:0:140.3.0-1.el8_2RHSA-2025:17340

Fixed in:0:140.3.0-1.el8_6RHSA-2025:17342

Fixed in:0:140.3.0-1.el8_4RHSA-2025:17341

Fixed in:0:140.3.0-1.el8_6RHSA-2025:17342

Fixed in:0:140.3.0-1.el8_8RHSA-2025:17343

Fixed in:0:140.3.0-1.el9_6RHSA-2025:16156

Fixed in:0:140.3.0-1.el9_0RHSA-2025:17344

Fixed in:0:140.3.0-1.el9_2RHSA-2025:17345

Fixed in:0:140.3.0-1.el9_4RHSA-2025:17346

Fixed in:0:140.3.0-1.el9_6RHSA-2025:16156

thunderbirdUbuntu

Fixed in:1:140.7.1+build1-0ubuntu0.22.04.1USN-7991-1

DeveloperEditionWindows application

Affected:140.3.0Fixed in:140.3.0Mozilla

Affected:143.0Fixed in:143.0Mozilla

Mozilla Firefox (en-US)Windows application

Affected:140.3.0Fixed in:140.3.0Mozilla

Affected:143.0Fixed in:143.0Mozilla

Mozilla Thunderbird (en-US)Windows application

Affected:143.0Fixed in:143.0Mozilla

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Exploit Intelligence

0.28%probability of exploitation in 30 days

20thpercentile

Low risk: more likely to be exploited than 20% of all known CVEs.

References

Vendor Advisory4

Other references3

Embed a live status badge for CVE-2025-10529

Markdown

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HTML

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-13.