CVE-2026-4463Disclosure(apple / chrome)

LOWCVSS 8.8 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Heap buffer overflow in WebRTC in Google Chrome prior to 146.0.7680.153 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

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1.0/ 10 priority

Sources & remediation

Vendor / third-party advisories

https://chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop_18.html

Other references

https://issues.chromium.org/issues/491358681

Weakness type (CWE)

CWE-122

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

chrome
linux_kernel
macos
windows

Threat summary

4 mentions across 2 observed days
Momentum state: stable

What's happening

Technical details provided in 3 signals
Disclosure: 4 classified signals
Peaked 1d ago at 3 mentions (2026-03-20); latest day: 1
4 total mentions across 2 days

Affected systems

Vendors

apple google linux microsoft

Products

chromelinux_kernelmacoswindows

1 version affected across 4 products

Deep dive

Activity timeline4 mentions / 2d

Signal classification1 categories

Disclosure

4100.0%

Referenced assets4 URLs

By indicator

Classification over time

Date	Total	Labels

2026-03-20	3	Disclosure3
2026-03-22	1	Disclosure1

Full discourse4 posts

Vulmon Vulnerability Feed@VulmonFeeds204d
Disclosure
CVE-2026-4463 Heap Buffer Overflow in Google Chrome WebRTC Enables Remote Code Execution https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-4463
Post summary
The post announces CVE-2026-4463 as a heap buffer overflow in Chrome WebRTC that allows remote code execution, but provides no PoC, exploit, patch, or evidence of active exploitation.
0000140
4.0K followersView on X
VulDB 🛡@vuldb204d
Disclosure
A new vulnerability with increased severity was disclosed for Google Chrome (CVE-2026-4463) https://vuldb.com/?id.351887
Post summary
A new Google Chrome vulnerability, CVE-2026-4463, has been disclosed with higher severity, though no additional exploit, patch, or technical details are provided.
0000188
2.1K followersView on X
The Hacker Wire@TheHackerWire202d
Disclosure
🟠 CVE-2026-4463 - High Heap buffer overflow in WebRTC in Google Chrome prior to 146.0.7680.153 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: H... https://www.thehackerwire.com/vulnerability/CVE-2026-4463/ https://t.co/sX8RTlOZYt
Post summary
The post announces a high‑severity heap buffer overflow in Chrome’s WebRTC, describing the vulnerability but offering no PoC, exploit, or patch information.
0000051
142 followersView on X
CVE@CVEnew204d
Disclosure
CVE-2026-4463 Heap buffer overflow in WebRTC in Google Chrome prior to 146.0.7680.153 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chrom… https://www.cve.org/CVERecord?id=CVE-2026-4463
Post summary
The CVE-2026-4463 post provides a technical disclosure of a heap buffer overflow vulnerability in Google Chrome’s WebRTC component, specifying affected versions and attack vectors, but offers no proof of exploitation or mitigation details.
0000089
56.8K followersView on X

CPE platform detail4 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

4 of 4 entries

Part	Vendor	Product	Version	Target SW	Target HW
OS	apple	macos	-	-	-
App	google	chrome	-	-	-
OS	linux	linux_kernel	-	-	-
OS	microsoft	windows	-	-	-

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What researchers are saying

CVE-2026-4463

Vulmon Vulnerability Feed@VulmonFeedsDisclosure

The post announces CVE-2026-4463 as a heap buffer overflow in Chrome WebRTC that allows remote code execution, but provides no PoC, exploit, patch, or evidence of active exploitation.

VulDB 🛡@vuldbDisclosure

A new Google Chrome vulnerability, CVE-2026-4463, has been disclosed with higher severity, though no additional exploit, patch, or technical details are provided.

The Hacker Wire@TheHackerWireDisclosure

The post announces a high‑severity heap buffer overflow in Chrome’s WebRTC, describing the vulnerability but offering no PoC, exploit, or patch information.

CVE@CVEnewDisclosure

The CVE-2026-4463 post provides a technical disclosure of a heap buffer overflow vulnerability in Google Chrome’s WebRTC component, specifying affected versions and attack vectors, but offers no proof of exploitation or mitigation details.