CVE-2026-2441
CWE-416Published: February 17, 2026· Updated: Feb 18, 2026
Official Description
Google Chromium CSS contains a use-after-free vulnerability that could allow a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.
CISA KEV Advisory
Google Chromium CSS Use-After-Free Vulnerability
Google Chromium CSS contains a use-after-free vulnerability that could allow a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Risk Analysis
This use-after-free vulnerability in Google Chromium CSS could lead to heap corruption and potential code execution by a remote attacker via a crafted HTML page. With a CVSS score of 8.8 and confirmed exploitation in the wild, this is a critical vulnerability despite a low EPSS score of 0.00345.
This vulnerability is actively being exploited in the wild, as confirmed by its presence in CISA's KEV catalog. It is remotely exploitable with low complexity.
Users of Google Chrome, Microsoft Edge, Opera, and other Chromium-based browsers on Linux, Windows, and macOS should update to the latest versions immediately to prevent exploitation.
Technical Analysis
CVE-2026-2441 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.
CISA has added CVE-2026-2441 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
From a weakness classification perspective (CWE-416): Use-after-free vulnerabilities involve accessing memory after it has been freed, often enabling arbitrary code execution.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
News & Research Mentioning CVE-2026-2441
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Tuesday added four security flaws to its Known Exploited Vulnerabilities (KEV) catalog, citing evidence of active exploitation in the wild. The list of vulnerabilities is as follows - CVE-2026-2441 (CVSS score: 8.8) - A use-after-free vulnerability in Google Chrome that could allow a remote attacker to potentially exploit heap [xlite_meta score:40 src:The Hacker News xlite_fp:8727d3b64f96649495c14fabd1ef2934a4102e99c713d397eb9b18e9f581e698]
CISA has added four new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2008-0015 Microsoft Windows Video ActiveX Control Remote Code Execution Vulnerability CVE-2020-7796 Synacor Zimbra Collaboration Suite (ZCS) Server-Side Request Forgery Vulnerability CVE-2024-7694 TeamT5 ThreatSonar Anti-Ransomware Unrestricted Upload of File with Dangerous Type Vulnerability CVE-2026-2441 Google Chromium CSS Use-After-Free Vulnerability These types of vulnerabilities are frequent attack vectors for malicious cyber actors and pose significant risks to the federal enterprise. Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities established the [xlite_meta score:57 src:CISA Alerts xlite_fp:0151606efb7c3597e4acbd0d824dcee382a174d70f7753422aa0e45dddd065c7]
Google on Friday released security updates for its Chrome browser to address a security flaw that it said has been exploited in the wild. The high-severity vulnerability, tracked as CVE-2026-2441 (CVSS score: 8.8), has been described as a use-after-free bug in CSS. Security researcher Shaheen Fazim has been credited with discovering and reporting the shortcoming on February 11, 2026. "Use after [xlite_meta score:43 src:The Hacker News xlite_fp:722f82b99adf46b210cc5ca9b54f7031a6cb1d060e4cafa1c83da8023f0b3e72]
All References (2)
Quick Facts
Known Threat Actors
Related CVEs (CWE-416)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-2441 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1