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6.5
CVE-2026-5869EXPLOITEDPATCHED
google · chrome

CVE-2026-5869: Heap buffer overflow in WebML in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to obtain potentially se

Description

Heap buffer overflow in WebML 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 Products

VendorProductVersions
googlechrome147.0.7727.55

Also Affects

Downstream vendors/products affected by this vulnerability

VendorProductSourceConfidence
googlechromecert_advisory90%
microsoftmicrosoft edgecert_advisory90%

References

  • https://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop.html
  • https://issues.chromium.org/issues/493708165

Related News (3 articles)

Tier A
Microsoft MSRC-1286s ago
Chromium: CVE-2026-5869 Heap buffer overflow in WebML
→ No new info (linked only)
Tier B
BSI Advisories1d ago
[NEU] [hoch] Google Chrome und Microsoft Edge: Mehrere Schwachstellen
→ No new info (linked only)
Tier C
VulDB1d ago
CVE-2026-5869 | Google Chrome up to 146.0.7680.178 WebML heap-based overflow (ID 493708)
→ No new info (linked only)
CVSS 3.16.5 MEDIUM
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
CISA KEV❌ No
Actively exploited✅ Yes
Patch available
147.0.7727.55
CWECWE-122
PublishedApr 8, 2026
Last enriched4h agov3
Trending Score69
Source articles3
Independent3
Info Completeness10/14
Missing: epss, kev, iocs, mitre_attack

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Related CVEs (5)

HIGHCVE-2026-5281EXPKEV
CVE-2026-5281: Use after free in Dawn in Google Chrome prior to 146.0.7680.178 allowed a remote attacker who had compromised the render
Trending: 142
CRITICALCVE-2026-5858EXP
CVE-2026-5858: Heap buffer overflow in WebML in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to execute arbitrary cod
Trending: 82
HIGHCVE-2026-5859EXP
CVE-2026-5859: Integer overflow in WebML in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to potentially exploit heap
Trending: 75
MEDIUMCVE-2026-5867EXP
CVE-2026-5867: Heap buffer overflow in WebML in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to obtain potentially se
Trending: 69
MEDIUMCVE-2026-5864EXP
CVE-2026-5864: Heap buffer overflow in WebAudio in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to obtain potentially
Trending: 69

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Verification

State: unverified
Confidence: 0%

Vulnerability Timeline

CVE Published
Apr 8, 2026
Discovered by ZDM
Apr 8, 2026
Updated: severity, affectedVersions
Apr 9, 2026
Actively Exploited
Apr 10, 2026
Exploit Available
Apr 10, 2026
Patch Available
Apr 10, 2026
Updated: exploitAvailable, activelyExploited
Apr 10, 2026

Version History

v3
Last enriched 4h ago
v3Tier A4h ago

Updated vendor to Microsoft, added product Edge, and marked exploit as available and actively exploited.

exploitAvailableactivelyExploited
via Microsoft MSRC
v2Tier C1d ago

Updated severity to CRITICAL and added new affected version 146.0.7680.178.

severityaffectedVersions
via VulDB
v12d ago

Initial creation