CVE-2026-100806

DiscoveredSep 29, 2026UpdatedSep 30, 2026

Uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157.

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CVSS v3.1

4.3 MEDIUM

EPSS

0.25%

probability of exploitation in 30 days

CISA KEV

Not listed

no confirmed exploitation reported

News coverage

sources referencing this CVE

Related IOCs

seen in the same coverage

EPSS Trend

Oct 2, 2026 → Oct 22, 2026

▼ 0.02pp

0.27% → 0.25% over 2 tracked changes

CVSS v3.1 Detail

Attack VectorNETWORK

Attack ComplexityLOW

Privileges RequiredNONE

User InteractionREQUIRED

ScopeUNCHANGED

ConfidentialityNONE

IntegrityNONE

AvailabilityLOW

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Connections

1 relationships

CWE-457

source

Timeline

disclosure → media coverage

Sep 29, 2026

Disclosure — published as a CVE record.