Google Chrome: Memory corruption in Core component
Summary
Google Chrome before 156.0.8078.47 contains a memory corruption flaw in the Core component (CWE-119). A remote attacker can use a crafted HTML page to potentially execute arbitrary code inside the browser sandbox. The attack requires that a user visits the malicious page. The CNA rates the CVSS score 8.8, while Chromium rates the severity as Medium.
Affected
- Google Chrome (desktop) prior to 156.0.8078.47
- Chromium-based browsers, including Microsoft Edge (affected range not confirmed)
Fixed in
- Google Chrome 156.0.8078.47 for Linux; Windows and macOS 156.0.8078.47 or 156.0.8078.48 (from secondary sources, not confirmed in the vendor advisory)
- Newest available Chrome build is the target (later Stable builds exist)
- Microsoft Edge 156.0.4314.42 or later (third-party advisory)
Workaround
Unknown.
- No workaround identified; apply the update.
Exploitation
- No evidence of in-the-wild exploitation found; CISA KEV listing not confirmed.
- No public proof of concept identified.
- CISA SSVC: exploitation none, not automatable, total technical impact.
Our recommendation
- Update all Chrome and Edge installations to the fixed builds or newer; prioritise browser fleets.
- Verify installed versions centrally instead of relying on automatic updates, and check that update policies do not block them.
- Linux: use the distribution packages; Ubuntu lists its Snap-based chromium as not affected.
- The Chromium tracker link in the CVE record describes a different bug; verify the reference with the vendor.
- Monitor vendor advisories.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Chrome Releases: Stable Channel Update for Desktop chromereleases.googleblog.com
- NVD record via Vulners vulners.com
- Microsoft Security Update Guide msrc.microsoft.com
- Vulners CVE list entry vulners.com
- Ubuntu security tracker ubuntu.com
- HKCERT Microsoft Edge security bulletin www.hkcert.org
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 31 Oct 2026, 14:37.
Original description (NVD)
Memory corruption in Core in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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