CVE-2026-5864 — Heap-based Buffer Overflow in Google Chrome

CWE-122 — Heap-based Buffer OverflowCWE-131 — Incorrect Calculation of Buffer Size10 documents10 sources
Severity
4.2MEDIUMNVD
EPSS
0.0%
top 91.87%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Google Chrome
Timeline
PublishedApr 8
Latest updateApr 10

Description

Heap buffer overflow in WebAudio in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: High)

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:LExploitability: 1.6 | Impact: 2.5

Affected Packages2 packages

▶CVEListV5google/chrome147.0.7727.55 — 147.0.7727.55
▶NVDgoogle/chrome< 147.0.7727.55

🔴Vulnerability Details

4
VulDB
Google Chrome up to 146.0.7680.178 WebAudio heap-based overflow (ID 490642 / WID-SEC-2026-1030)↗2026-04-10
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GHSA
GHSA-q556-g83v-3933: Heap buffer overflow in WebAudio in Google Chrome prior to 147↗2026-04-09
▶
CVEList
CVE-2026-5864: Heap buffer overflow in WebAudio in Google Chrome prior to 147↗2026-04-08
▶
OSV
CVE-2026-5864: Heap buffer overflow in WebAudio in Google Chrome prior to 147↗2026-04-08
▶

📋Vendor Advisories

3
Chrome
Stable Channel Update for Desktop: CVE-2026-5864↗2026-04-07
▶
Red Hat
chromium-browser: Heap buffer overflow in WebAudio↗2026-04-07
▶
Debian
CVE-2026-5864: chromium - Heap buffer overflow in WebAudio in Google Chrome prior to 147.0.7727.55 allowed...↗2026
▶

🕵️Threat Intelligence

1
Wiz
CVE-2026-5864 Impact, Exploitability, and Mitigation Steps | Wiz↗
▶

💬Community

1
Bugzilla
CVE-2026-5864 chromium-browser: Heap buffer overflow in WebAudio↗2026-04-08
▶