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Mozilla EUVDEUVD-2026-30899

| CVE-2026-8949 HIGH
Integer Overflow or Wraparound (CWE-190)
2026-05-19 mozilla GHSA-wpxg-v53p-m79m
Mozilla Buffer Overflow Integer Overflow Suse Red Hat
7.5
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SUSE
HIGH
qualitative
Red Hat
6.1 MEDIUM
qualitative

Primary rating from NVD.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

1
CVE Published
May 19, 2026 - 12:29 nvd
UNKNOWN (no severity yet)

DescriptionCVE.org

Integer overflow in the Widget: Win32 component. This vulnerability was fixed in Firefox 151 and Firefox ESR 140.11.

Analysis

Integer overflow in the Widget: Win32 component. This vulnerability was fixed in Firefox 151 and Firefox ESR 140.11.

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Same weakness CWE-190 – Integer Overflow or Wraparound

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7.5
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CVE-2016-1010 HIGH
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CVE-2013-3940 CRITICAL
9.3

Same technique Buffer Overflow

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Vendor StatusVendor

SUSE

Severity: High
Product Status
SUSE Linux Enterprise Server 12 SP5-LTSS Fixed
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 Fixed
openSUSE Tumbleweed Fixed
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS Affected

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EUVD-2026-30899 vulnerability details – vuln.today
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