CVE-2025-13720 — Incorrect Type Conversion or Cast in Google Chrome

CWE-704 — Incorrect Type Conversion or CastCWE-843 — Type Confusion9 documents9 sources
Severity
8.8HIGHNVD
EPSS
0.1%
top 64.97%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Google ChromeChromium
Timeline
PublishedDec 2
Latest updateJan 5

Description

Bad cast in Loader in Google Chrome prior to 143.0.7499.41 allowed a remote attacker who had compromised the renderer process to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Medium)

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitability: 2.8 | Impact: 5.9

Affected Packages3 packages

▶CVEListV5google/chrome143.0.7499.41 — 143.0.7499.41
▶NVDgoogle/chrome< 143.0.7499.40+1
▶Debianchromium/chromium< 143.0.7499.40-1~deb12u1+2

🔴Vulnerability Details

3
OSV
CVE-2025-13720: Bad cast in Loader in Google Chrome prior to 143↗2025-12-02
▶
GHSA
GHSA-p4q8-mx85-6fc8: Bad cast in Loader in Google Chrome prior to 143↗2025-12-02
▶
CVEList
CVE-2025-13720: Bad cast in Loader in Google Chrome prior to 143↗2025-12-02
▶

📋Vendor Advisories

4
Chrome
Long Term Support Channel Update for ChromeOS: CVE-2025-13720↗2026-01-05
▶
Microsoft
Chromium: CVE-2025-13720 Bad cast in Loader↗2025-12-09
▶
Red Hat
chromium-browser: Bad cast in Loader↗2025-12-02
▶
Debian
CVE-2025-13720: chromium - Bad cast in Loader in Google Chrome prior to 143.0.7499.41 allowed a remote atta...↗2025
▶

🕵️Threat Intelligence

1
Bleepingcomputer
Microsoft December 2025 Patch Tuesday fixes 3 zero-days, 57 flaws↗2025-12-09
▶
CVE-2025-13720 — Incorrect Type Conversion or Cast | cvebase