CVE-2025-8043

CRITICALNVD 9.89.8—

9.8

Focus incorrectly truncated URLs towards the beginning instead of around the origin. This vulnerability was fixed in Firefox 141.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 66.7%
KEV: Not listed

Published

July 22, 2025

Last Modified

April 13, 2026

Advisory Details (2)

Auto-updated May 20, 2026

No patch confirmed yet.

generic

Security Vulnerabilities fixed in Firefox 141 — Mozilla

https://www.mozilla.org/security/advisories/mfsa2025-56/

generic

1970209 - (CVE-2025-8043) Domain highlighting and alignment is disabled Firefox Focus

https://bugzilla.mozilla.org/show_bug.cgi?id=1970209

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-451User Interface Misrepresentation of Critical Information

Data Freshness Timeline

(refreshed 12× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:13 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-26 13:44 UTCepss_batch
2026-05-26 13:44 UTCepss_batch
2026-05-26 13:44 UTCepss_batch
2026-05-26 07:18 UTCepss_batch

Frequently asked(5)

What is CVE-2025-8043?

CVE-2025-8043 is a critical vulnerability published on July 22, 2025. Focus incorrectly truncated URLs towards the beginning instead of around the origin. This vulnerability was fixed in Firefox 141.

When was CVE-2025-8043 disclosed?

CVE-2025-8043 was first published in the National Vulnerability Database on July 22, 2025, with the most recent update on April 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2025-8043 actively exploited?

CVE-2025-8043 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 66.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2025-8043?

CVE-2025-8043 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2025-8043?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-8043, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2025-8043

Explore →

Is Your Infrastructure Affected by CVE-2025-8043?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs