CVE-2026-6300

highpriority · track · 10EPSS 0.003 · 27 %ileexploit · PoCDEEURUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

0.34% (27th) EPSS

CVSS 8.8 · high

Is it mine?

21 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

Use after free in CSS in Google Chrome prior to 147.0.7727.101 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)

cvss

Technical severity, 0–10. One row per scoring source.

8.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.18.8highAV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondaryexploitability 2.8 · impact 5.9

v3.18.3highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-416USCWE-416US

exploits (1)

Public proof-of-concept and weaponised exploit code.

notthemystery/CVE-2026-6300-PoCThis is a Proof-of-Concept for the Blink CSS UAF vulnerability tracked as CVE-2026-6300.PoC · poc_in_github

affected products (21)

Products and version ranges known to be affected.

Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Fedora Linuxall versionscert_bundDEcpe:/o:fedoraproject:fedora:-
Google Chrome <147.0.7727.101all versionscert_bundDE
Google Chrome <147.0.7727.102all versionscert_bundDE
IGEL OSall versionscert_bundDEcpe:/o:igel:os:-
Microsoft Edge <146.0.3856.130all versionscert_bundDE
Microsoft Edge <147.0.3912.72all versionscert_bundDE
SUSE openSUSEall versionscert_bundDEcpe:/o:suse:opensuse:-
Google Chrome< 147.0.7727.101cert_bundDE
Google Chrome< 147.0.7727.102cert_bundDE
Microsoft Edge< 146.0.3856.130cert_bundDE
Microsoft Edge< 147.0.3912.72cert_bundDE
Google Chrome147.0.7727.101 → 147.0.7727.101enisa_euvdEU
Google Inc Google Chrome≤ 147.0.7727.101fstec_bduRU
АО «НППКТ» ОСОН ОСнова Оnyx≤ 2.15fstec_bduRU
ООО «Ред Софт» РЕД ОС≤ 8.0fstec_bduRU
ООО «РусБИТех-Астра» Astra Linux Special Edition≤ 4.8fstec_bduRU
ООО «РусБИТех-Астра» Astra Linux Special Edition≤ 1.7fstec_bduRU
ООО «РусБИТех-Астра» Astra Linux Special Edition≤ 1.8fstec_bduRU
ООО «РусБИТех-Астра» Astra Linux Special Edition≤ 4.7fstec_bduRU

showing 20 of 21

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-1130Google Chrome/Microsoft Edge: Mehrere SchwachstellenDeutsch2026-04-15csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Google Chrome/Microsoft Edge ausnutzen, um nicht näher spezifizierte Angriffe durchzuführen, darunter möglicherweise Codeausführung, Umgehung von Sicherheitsmaßnahmen, Denial-of-Service Datenmanipulation oder -offenlegung.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund NVD CVE.org MITRE

published 2026-04-15modified 2026-10-26

references (7)

External citations — patches, advisories, analysis.

scry

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