Cyber Resilience

CVE-2025-12908

Google Chrome ≤ 140.0.7339.80

Public PoC
Published
08 November 2025
Modified
21 November 2025
Patch / advisory
CVSS Score v3.1 5.4
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
EPSS Score 0.0018 8th percentile
Risk Priority 35 floored blend · peak EPSS

Summary

CVE-2025-12908 is a medium-severity Improper Input Validation (CWE-20) vulnerability in Google Chrome. Its CVSS base score is 5.4 (Medium).

Operationally, ranked at the 8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified map to SI-10 (Information Input Validation) and AC-4 (Information Flow Enforcement) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

Insufficient validation of untrusted input in Downloads in Google Chrome on Android prior to 140.0.7339.80 allowed a remote attacker to perform domain spoofing via a crafted HTML page. (Chromium security severity: Low)

CWE(s)

Related Threats

CVEs Like This One

CVE-2026-11029Same product: Google Android
CVE-2026-7905Same product: Google Android
CVE-2026-13995Same product: Google Android
CVE-2026-7915Same product: Google Android
CVE-2026-14428Same product: Google Android
CVE-2026-13872Same product: Google Android
CVE-2026-13866Same product: Google Android
CVE-2026-9977Same product: Google Android
CVE-2026-9987Same product: Google Android
CVE-2026-13929Same product: Google Android

Affected Assets

google
chrome
≤ 140.0.7339.80

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)
  • SI-10 Information Input Validation
  • AC-4 Information Flow Enforcement
  • SC-18 Mobile Code
Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)
  • 6 hardening rules · 3 OS baselines
Validate
Prove the fix (OWASP ASVS)

Mitigating Controls (NIST 800-53 r5) AI

prevent

Directly requires validation of untrusted input, which is the root cause of the domain-spoofing flaw in Chrome Downloads.

prevent

Enforces information-flow rules that can block crafted HTML from producing spoofed domain identifiers visible to the user.

SC-18 Mobile Code partial match
prevent

Restricts mobile code (HTML/scripts) delivered via downloads, limiting the attack surface that led to the spoofing condition.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly require and enforce input validation during development.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

detects

Testing against a defined set of requirements and using code review plus vulnerability scanning forces validation of inputs and handling of unanticipated conditions, reducing the chance that malformed data will be accepted.

prevents

Secure-coding guidelines and mandatory security testing (including code scans) compel developers to validate and sanitize inputs at design and implementation time, lowering the incidence of malformed or malicious data reaching downstream components.

prevents

Mandating input controls that include integrity checks and input validation ensures that untrusted data is examined before use, blocking the root cause of many injection and malformed-data weaknesses.

prevents

Security-by-design principles explicitly call for data validation and sanitization at every layer, reducing the chance that malformed or malicious input will be processed without scrutiny.

prevents

Requiring language-specific secure coding standards, peer review, SAST and documented mitigation of common programming errors forces validation of all inputs before they are trusted.

none

Regular automated validation of system software and data content, combined with scanning of all inbound files, enforces input validation at the boundary before untrusted content is processed.

References