CVE-2025-13721

Race in v8 in Google Chrome prior to 143.0.7499.41 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Medium)

Published: 2025-12-02 Last update: 2025-12-04 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2025-13721 is rated Low Risk (36.7/100): CVSS High severity, with low exploitation likelihood (EPSS 0.06%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-13721

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-12-03 0.06%

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-13721

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
1.6 5.9 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2025-13721

OS Trackers for CVE-2025-13721

vendor priority summary link
alpine high CVE-2025-13721: 1 source package rows (qt6-qtwebengine); 3 state rows across 2 repos (3.23-community, edge-community); fixed 3, open 0. https://security.alpinelinux.org/vuln/CVE-2025-13721
debian end-of-life CVE-2025-13721 end-of-life priority: Debian including 1 source packages (chromium), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 4, open 1. https://security-tracker.debian.org/tracker/CVE-2025-13721
redhat medium https://access.redhat.com/security/cve/CVE-2025-13721
ubuntu medium CVE-2025-13721 medium priority: Ubuntu including 1 source packages (chromium-browser), 5 status rows across 5 suites (jammy, noble, plucky, questing, upstream): not-affected 4, released 1. https://ubuntu.com/security/CVE-2025-13721

Affected software / configurations for CVE-2025-13721

Vendor Product Version Raw CPE
google chrome < 143.0.7499.40 cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
google chrome < 143.0.7499.41 cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

References for CVE-2025-13721

cvelogic Threat Intelligence