CVE-2026-5864
published 2026-04-08CVE-2026-5864: 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…
PriorityP419medium4.3CVSS 3.1
AVNACLPRNUIRSUCLINAN
EPSS
0.24%
15.4th percentile
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)
Affected
4 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | chromium | < chromium 147.0.7727.55-1 (sid) | chromium 147.0.7727.55-1 (sid) |
| chrome | < 147.0.7727.55 | 147.0.7727.55 | |
| chrome | >= 147.0.7727.55 < 147.0.7727.55 | 147.0.7727.55 | |
| chrome_chrome | — | — |
CVSS provenance
nvdv3.14.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
osv4.2MEDIUM
vendor_debian4.2MEDIUM
vendor_redhat4.2MEDIUM
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VulDB
Google Chrome up to 146.0.7680.178 WebAudio heap-based overflow (ID 490642 / WID-SEC-2026-1030)
vuldb·2026-04-10·CVSS 4.2
CVE-2026-5864 [MEDIUM] Google Chrome up to 146.0.7680.178 WebAudio heap-based overflow (ID 490642 / WID-SEC-2026-1030)
A vulnerability marked as critical has been reported in Google Chrome. This impacts an unknown function of the component WebAudio. Performing a manipulation results in heap-based buffer overflow.
This vulnerability is cataloged as CVE-2026-5864. It is possible to initiate the attack remotely. There is no exploit available.
It is suggested to upgrade the affected component.
GHSA
GHSA-q556-g83v-3933: Heap buffer overflow in WebAudio in Google Chrome prior to 147
ghsa_unreviewed·2026-04-09
CVE-2026-5864 CWE-122 GHSA-q556-g83v-3933: Heap buffer overflow in WebAudio in Google Chrome prior to 147
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)
OSV
CVE-2026-5864: Heap buffer overflow in WebAudio in Google Chrome prior to 147
osv·2026-04-08·CVSS 4.2
CVE-2026-5864 [MEDIUM] CVE-2026-5864: Heap buffer overflow in WebAudio in Google Chrome prior to 147
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)
Chrome
Stable Channel Update for Desktop: CVE-2026-5864
vendor_chrome·2026-04-07·CVSS 8.8
CVE-2026-5864 [HIGH] Stable Channel Update for Desktop: CVE-2026-5864
Stable Channel Update for Desktop
CVE-2026-5864: Heap buffer overflow in WebAudio. Reported by Syn4pse on 2026-03-08 [TBD][ 491884710 ] High CVE-2026-5865: Type Confusion in V8
Reported by Project WhatForLunch (@pjwhatforlunch) on 2026-03-12 [TBD][ 492218537 ] High CVE-2026-5866: Use after free in Media
Severity: high
Red Hat
chromium-browser: Heap buffer overflow in WebAudio
vendor_redhat·2026-04-07·CVSS 4.2
CVE-2026-5864 [MEDIUM] CWE-131 chromium-browser: Heap buffer overflow in WebAudio
chromium-browser: Heap buffer overflow in WebAudio
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)
A heap buffer overflow flaw was found in the WebAudio component of the Chromium browser.
Upstream bug(s):
https://code.google.com/p/chromium/issues/detail?id=490642831
Statement: Red Hat Product Security rates the severity of this flaw as determined by the Google Chrome Security Advisory.
Debian
CVE-2026-5864: chromium - Heap buffer overflow in WebAudio in Google Chrome prior to 147.0.7727.55 allowed...
vendor_debian·2026·CVSS 4.2
CVE-2026-5864 [MEDIUM] CVE-2026-5864: chromium - Heap buffer overflow in WebAudio in Google Chrome prior to 147.0.7727.55 allowed...
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)
Scope: local
bookworm: open
bullseye: open
forky: open
sid: resolved (fixed in 147.0.7727.55-1)
trixie: open
No detection rules found.
No public exploits indexed.
Sans Isc
Microsoft Patch Tuesday April 2026., (Tue, Apr 14th)
blogs_sans_isc·2026-04-14·CVSS 8.8
[HIGH] Microsoft Patch Tuesday April 2026., (Tue, Apr 14th)
Microsoft Patch Tuesday April 2026.
Published: 2026-04-14. Last Updated: 2026-04-14 17:46:09 UTC
by Johannes Ullrich (Version: 1)
0 comment(s)
This month's Microsoft Patch Tuesday looks like a record one, but let's look at it a bit closer to understand what is happening
The update patches a total of 243 vulnerabilities. However, 78 of them are Chromium issues affecting Microsoft Edge. Patches for Edge were released earlier. This leaves 165 vulnerabilities that are not Edge-related. Of these, 8 are rated critical, and 154 are important. One vulnerability has already been exploited, and another was made public before today but has not yet been seen in the wild.
Noteworthy Vulnerabilities:
CVE-2026-33827 (Windows TCP/IP Remote Code Execution Vulnerability): As a packet nerd, I love thes
Wiz
CVE-2026-5864 Impact, Exploitability, and Mitigation Steps | Wiz
blogs_wiz·CVSS 8.8
CVE-2026-5864 [HIGH] CVE-2026-5864 Impact, Exploitability, and Mitigation Steps | Wiz
## CVE-2026-5864 :
Google Chrome vulnerability analysis and mitigation
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)
Source : NVD
Published April 8, 2026
CNA Score N/A
Affected Technologies
Google Chrome
Chromium
Has Public Exploit No
Has CISA KEV Exploit No
CISA KEV Release Date N/A
CISA KEV Due Date N/A
Exploitation Probability Percentile (EPSS) 8.5
Exploitation Probability (EPSS) N/A
Affected packages and libraries
cpe:2.3:a:google:chrome
chromium
Sources
NVD
Debian 11, 12, 13, 14 No Fix Added at: Apr 09, 2026
Echo No Fix Added at: Apr 09, 2026
Linux Has Fix Added at: Apr 09, 2026
Windows H
Bugzilla
CVE-2026-5864 chromium-browser: Heap buffer overflow in WebAudio
bugzilla·2026-04-08·CVSS 4.2
CVE-2026-5864 [MEDIUM] CVE-2026-5864 chromium-browser: Heap buffer overflow in WebAudio
CVE-2026-5864 chromium-browser: Heap buffer overflow in WebAudio
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)
2026-04-08
Published