CVE-2026-5915

Status: ModifiedHigh (8.1)—

Insufficient validation of untrusted input in WebML in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page. (Chromium security severity: Low)

CVSS

Version: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
Base score: 8.1

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.31%
Percentile among all scored CVEs: 22
Score date: 10/6/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

🎯 ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

ExploitationT1203 Exploitation for Client Executionexecution95 %
Primary impactT1565.001 Stored Data Manipulationimpact75 %
Secondary impactT1499.004 Application or System Exploitationimpact60 %

UI:R requiere interacción del usuario (HTML preparada). Out of bounds memory write permite corrupción de datos (I:H) o denegación de servicio (A:H).

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

🛡️ ATT&CK mitigations that cover these techniques

Restrict File and Directory Permissions Remote Data Storage Filter Network Traffic Encrypt Sensitive Information Application Isolation and Sandboxing Exploit Protection

Affected technologies (1)

Google — Chrome

CWEs

CWE-20

References

Raw JSON (NVD)

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