CVE-2025-10585

Exp

Type confusion in V8 in Google Chrome prior to 140.0.7339.185 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

Published: 2025-09-24 Last update: 2025-10-30 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-10585 is rated Critical Active Threat (92.9/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 1.58%). CISA KEV confirms active exploitation (added 2025-09-23) affecting Google / Chromium V8. a weakness (CWE-843) Unauthenticated remote administrative access may be possible. The CISA remediation deadline has passed—treat as an emergency patch priority.

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

CISA KEV Record for CVE-2025-10585

Name: Google Chromium V8 Type Confusion Vulnerability · CISA KEV detail

Exploit added: 2025-09-23

Action due: 2025-10-14

Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Exploit prediction scoring system (EPSS) score for CVE-2025-10585

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 2026-06-06 1.54% 1.58% +0.04%
2 2026-05-29 0.79% 1.54% +0.74%
3 2026-05-20 — 0.79% —

Full EPSS history (38 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-10585

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
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.
 3.9 5.9 [email protected]
8.8 3.1 HIGH
CVSS:3.1/AV:N/AC:L/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:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
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.
 2.8 5.9 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2025-10585

OS Trackers for CVE-2025-10585

vendor priority summary link
debian end-of-life CVE-2025-10585 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-2025-10585
gentoo high CVE-2025-10585: 1 GLSA(s) (202511-04), 4 atom(s) (www-client/chromium, www-client/google-chrome, www-client/microsoft-edge, www-client/opera); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2025-10585
ubuntu high CVE-2025-10585 high priority: Ubuntu including 1 source packages (chromium-browser), 4 status rows across 4 suites (jammy, noble, plucky, upstream): not-affected 3, released 1. https://ubuntu.com/security/CVE-2025-10585

Affected software / configurations for CVE-2025-10585

Vendor Product Version Raw CPE
google chrome < 140.0.7339.185 cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

References for CVE-2025-10585

cvelogic Threat Intelligence