CVE-2023-6856Not scoredCWE-787

CVE-2023-6856: Mozilla Firefox ESR vulnerability

Mozilla · Firefox ESR

Vendor fix available · Affected: Mozilla Firefox ESR · Exploitation: likely to be exploited (10% or more)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

20.6%probability of exploitation in the next 30 days

97th percentile

050100

Higher than 97% of scored CVEs

Not scored yet. The CVE record carries no CVSS score.

DescriptionCVE.org

The WebGL `DrawElementsInstanced` method was susceptible to a heap buffer overflow when used on systems with the Mesa VM driver. This issue could allow an attacker to perform remote code execution and sandbox escape. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.

Affected products3

From the CVE record. A product or version that is not listed is unknown, not unaffected.

Mozilla · Firefox ESRbefore 115.6
Mozilla · Thunderbirdbefore 115.6
Mozilla · Firefoxbefore 121

On the Atlas

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Open the Atlas

Exploitation: Likely to be exploited (10% or more). EPSS gives it a 10% or higher chance of exploitation in the next 30 days.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Out-of-bounds Write · Memory Corruption
Vendor: Mozilla
Published: December 2023
Band: Likely to be exploited (10% or more), December 2023

CoverageNo articles yet

No CyberSIXT article names CVE-2023-6856 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.