CVE-2026-3543Disclosure(apple / chrome)

MEDIUMCVSS 8.8 · HIGH

Exploitation observed; activity peaked at 3 mentions and remains active

Immediate actions

Patch apple chrome systems immediately
Assume compromise if assets are exposed

Recommended action window: Immediate (within 24h)

NVD description

Inappropriate implementation in V8 in Google Chrome prior to 145.0.7632.159 allowed a remote attacker to potentially perform out of bounds memory access via a crafted HTML page. (Chromium security severity: High)

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5.0/ 10 priority

Sources & remediation

Vendor / third-party advisories

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

Other references

https://issues.chromium.org/issues/485267831

Weakness type (CWE)

CWE-284

Priority

MEDIUM

Exploitation

ACTIVE

PoC

NONE

Patch

AVAILABLE

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

Active exploitation appears in 1 classified signals
Patch or workaround signal is available
8 mentions across 5 observed days
Momentum state: stable

What's happening

Active exploitation reported across 1 signal
Patch or workaround mentioned in 1 signal
Technical details provided in 6 signals
Disclosure: 6 classified signals
General: 1 classified signal
Peaked 3d ago at 3 mentions (2026-03-05); latest day: 1
8 total mentions across 5 days

Affected systems

Vendors

apple google linux microsoft

Products

chromelinux_kernelmacoswindows

1 version affected across 4 products

Deep dive

Activity timeline8 mentions / 5d

Signal classification3 categories

Disclosure

675.0%

General

112.5%

Patch

112.5%

Referenced assets6 URLs

By indicator

Classification over time

Date	Total	Labels

2026-03-04	2	Disclosure2
2026-03-05	3	Disclosure3
2026-03-06	1	General1
2026-03-08	1	Disclosure1
2026-03-10	1	Patch1

Full discourse8 posts

QYmag1c@QYmag1c216d
General
Two new Chrome V8 CVEs assigned (CVE-2026-3542 and CVE-2026-3543) 🎯 Big thanks to @bjrjk for the help and guidance! https://chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop.html
Post summary
The tweet announces two new Chrome V8 CVEs and links to an update page, but it contains no explicit PoC, exploit, active exploitation, patch details, or technical specificity.
28065263.5K
75 followersView on X
xvonfers@xvonfers217d
Disclosure
(CVE-2026-3543)[485267831][ast][parser]Inappropriate implementation(stack overflow) https://chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop.html Reported by @QYmag1c
Post summary
The text announces CVE-2026-3543, noting it involves an inappropriate implementation leading to a stack overflow, and references a Google Chrome stable channel release, implying patching but without explicit details.
010531.2K
4.9K followersView on X
İmam Gazali@boo8ow1923212d
Patch
İşte güncel ve yamasız kritik güvenlik zafiyetlerinin CVE listesi, önem derecesine göre sıralanmış şekilde: ## Kritik Zafiyetler (CVSS 10.0 - En Yüksek Risk) - **Cisco Secure Firewall ürünleri**: Mart 2026 güncellemesinde 48 güvenlik açığı giderildi, bunlardan 2 tanesi CVSS 10.0 seviyesinde kritik açıklardır. Bu açıklar saldırganlara sistem kontrolü vermektedir.^4^ ## Sıfır Gün Açıkları (Aktif İstismar Riski) - **CVE-2026-21385**: Android için - sınırlı ve hedefli istismar edildiğine dair işaretler bulunan sıfır gün açığı^1^ - **CVE-2026-21510**: Windows Shell güvenlik özelliği atlama açığı^3^ - **CVE-2026-21513**: MSHTML Framework güvenlik özelliği atlama açığı^3^ - **CVE-2026-21514**: Microsoft Word güvenlik özelliği atlama açığı^3^ - **CVE-2026-21519**: Desktop Window Manager yetki yükseltme açığı^3^ - **CVE-2026-21533**: Remote Desktop Services yetki yükseltme açığı^3^ - **CVE-2026-21525**: Remote Access Connection Manager hizmet aksatma açığı^3^ ## Google Chrome Kritik Açıkları - **CVE-2026-3536**: ANGLE'da tamsayı taşması (Kritik)^10^ - **CVE-2026-3537**: PowerVR'da nesne yaşam döngüsü sorunu (Kritik)^10^ - **CVE-2026-3538**: Skia'da tamsayı taşması (Kritik)^10^ ## Yüksek Önemli Açıklar - **CVE-2026-3539**: DevTools'da nesne yaşam döngüsü sorunu (Yüksek)^10^ - **CVE-2026-3540**: WebAudio'da uygunsuz implementasyon (Yüksek)^10^ - **CVE-2026-3541**: CSS'de uygunsuz implementasyon (Yüksek)^10^ - **CVE-2026-3542**: WebAssembly'de uygunsuz implementasyon (Yüksek)^10^ - **CVE-2026-3543**: V8'de uygunsuz implementasyon (Yüksek)^10^ - **CVE-2026-3544**: WebCodecs'da heap buffer overflow (Yüksek)^10^ - **CVE-2026-3545**: Navigasyonda yetersiz veri doğrulama (Yüksek)^10^ ## Güncelleme Önerileri - **Windows 11**: KB5077181 (25H2/24H2) ve KB5075941 (23H2) güncellemeleri ile 6 sıfır gün açığı kapatıldı^3^ - **Android**: 2026-03-05 güvenlik yama seviyesi veya üzeri tüm açıkları giderir^1,2^ - **Google Chrome**: En son sürüme güncelleme yapılması kritik açıklar için zorunludur^1^ - **Cisco ürünleri**: Mart 2026 paket güvenlik güncellemesinin uygulanması gerekir^4^ Bu zafiyetler arasında özellikle sıfır gün açıkları ve CVSS 10.0 seviyesindeki açıklar en yüksek riski taşımaktadır ve acil olarak yamanması gerekmektedir.
Post summary
The bulletin lists critical CVEs, highlights evidence of active exploitation for at least one zero‑day, and provides specific patch recommendations for affected platforms.
0100071
48 followersView on X
とれとれたまたま！@ejGyLgtl1l34519214d
Disclosure
・CVE-2026-3540：Inappropriate implementation in WebAudio（High）・CVE-2026-3541：Inappropriate implementation in CSS（High）・CVE-2026-3542：Inappropriate implementation in WebAssembly（High）・CVE-2026-3543：Inappropriate implementation in V8（High）
Post summary
Four new CVEs are announced for different Chrome components, all marked as High severity, with no further exploitation, Patch, or PoC details provided.
1000042
134 followersView on X
CVE@CVEnew217d
Disclosure
CVE-2026-3543 Inappropriate implementation in V8 in Google Chrome prior to 145.0.7632.159 allowed a remote attacker to potentially perform out of bounds memory access via a crafted H… https://www.cve.org/CVERecord?id=CVE-2026-3543
Post summary
The text reports a CVE affecting Google Chrome’s V8 engine, describing a potential remote out-of-bounds memory access vulnerability, with no PoC, exploit, patch, or evidence of active exploitation presented.
01000188
56.6K followersView on X
VulDB 🛡@vuldb217d
Disclosure
There is a new vulnerability with elevated criticality in Google Chrome (CVE-2026-3543) https://vuldb.com/?id.348836
Post summary
The message announces a new high‑criticality vulnerability in Google Chrome (CVE-2026-3543) but provides no technical details, PoC, or exploitation information.
0000094
2.1K followersView on X
Vulmon Vulnerability Feed@VulmonFeeds217d
Disclosure
CVE-2026-3543 Out-of-Bounds Memory Access Vulnerability in Google Chrome V8 Java... https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-3543 Vulnerability Alert Subscriptions: https://alerts.vulmon.com/?utm_source=twitter&utm_medium=social&utm_campaign=2102281&utm_content=1
Post summary
The tweet announces CVE-2026-3543, providing a link to more details but offering no evidence of exploitation, patch, or PoC.
0000069
4.0K followersView on X
Infoflowcloud@infoflowcloud217d
Disclosure
🚨*CVE* CVE-2026-3543 Inappropriate implementation in V8 in Google Chrome prior to 145.0.7632.159 allowed a remote attacker to potentially perform out of bounds memory access via a crafted H… https://www.cve.org/CVERecord?id=CVE-2026-3543 ----- Traducción: CVE-2026-3543 Imp… http://infoflow.cloud`
Post summary
The tweet announces CVE‑2026‑3543, a memory‑corruption flaw in Google Chrome’s V8 engine, and provides a link to the CVE record, but does not mention any PoC, exploit code, active exploitation, or patch.
0000038
56 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-2026-3543

İmam Gazali[verified]@boo8ow1923Patch

The bulletin lists critical CVEs, highlights evidence of active exploitation for at least one zero‑day, and provides specific patch recommendations for affected platforms.

QYmag1c@QYmag1cGeneral

The tweet announces two new Chrome V8 CVEs and links to an update page, but it contains no explicit PoC, exploit, active exploitation, patch details, or technical specificity.

xvonfers@xvonfersDisclosure

The text announces CVE-2026-3543, noting it involves an inappropriate implementation leading to a stack overflow, and references a Google Chrome stable channel release, implying patching but without explicit details.

とれとれたまたま！@ejGyLgtl1l34519Disclosure

Four new CVEs are announced for different Chrome components, all marked as High severity, with no further exploitation, Patch, or PoC details provided.

CVE@CVEnewDisclosure

The text reports a CVE affecting Google Chrome’s V8 engine, describing a potential remote out-of-bounds memory access vulnerability, with no PoC, exploit, patch, or evidence of active exploitation presented.

VulDB 🛡@vuldbDisclosure

The message announces a new high‑criticality vulnerability in Google Chrome (CVE-2026-3543) but provides no technical details, PoC, or exploitation information.

Vulmon Vulnerability Feed@VulmonFeedsDisclosure

The tweet announces CVE-2026-3543, providing a link to more details but offering no evidence of exploitation, patch, or PoC.

Infoflowcloud@infoflowcloudDisclosure

The tweet announces CVE‑2026‑3543, a memory‑corruption flaw in Google Chrome’s V8 engine, and provides a link to the CVE record, but does not mention any PoC, exploit code, active exploitation, or patch.