CVE-2026-8093CWE-119CWE-120

CVE-2026-8093

High · published May 7, 2026

CVSS v3.1
8.1
EPSS
0%
Percentile
35.4
In the wild
Unconfirmed
What it is

Memory safety bugs present in Thunderbird 150.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 150.0.2 and Thunderbird 150.0.2.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00421 · 35.4th percentile
Weaknesses
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer; CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Published
2026-05-07T17:16Z
Affected products (2)
ProductVersionsFixed in
mozilla/firefox< 150.0.2150.0.2
mozilla/thunderbird< 150.0.2150.0.2
References (6)
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1981270%2C2027154%2C2028332%2C2029327%2C2029894%2C2032189%2C2034837%2C2035968%2C2036256 · [email protected]https://www.mozilla.org/security/advisories/mfsa2026-40/ · [email protected]https://www.mozilla.org/security/advisories/mfsa2026-43/ · [email protected]https://access.redhat.com/security/cve/CVE-2026-8093 · 0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://bugzilla.redhat.com/show_bug.cgi?id=2467701 · 0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-8093.json · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
EPSS history
Timeline
  • 07 MAY 12:45Z
    Memory safety bugs fixed in Firefox 150.0.2
    cvelistv5