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EPSS 0.1%top 98%

Improper input validation in libsmsd.so prior to SMR Aug-2026 Release 1 allows local attackers to write out-of-bounds memory. (CVE-2026-21067)

0
Medium
Published: 08/10/2026 (08/10/2026, 09:31:23 UTC)
Source: GCVE Database

Description

CVE-2026-21067 is a vulnerability in libsmsd.so prior to SMR Aug-2026 Release 1 that allows local attackers to write out-of-bounds memory due to improper input validation. This flaw could lead to memory corruption. The vulnerability has a medium severity rating. No patch information is currently provided, and no known exploits are reported in the wild.

CVSS v4.0

Attack Vector
Local
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Vuln. Confidentiality
Low
Vuln. Integrity
Low
Vuln. Availability
Low
Subsq. Confidentiality
Low
Subsq. Integrity
Low
Subsq. Availability
Low
Scope
X
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 08/10/2026, 16:04:03 UTC

Technical Analysis

The vulnerability CVE-2026-21067 arises from improper input validation in the libsmsd.so component before the SMR Aug-2026 Release 1. This flaw permits local attackers to perform out-of-bounds memory writes, potentially causing memory corruption. The CVSS 4.0 vector indicates a local attack vector with low complexity and no privileges or user interaction required, but the overall severity is moderate. No official patch or remediation details are currently available.

Potential Impact

Local attackers can exploit this vulnerability to write beyond allocated memory boundaries in libsmsd.so, which may lead to memory corruption and potentially destabilize the affected system or cause unintended behavior. The severity is assessed as medium, indicating a moderate risk to affected systems.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, limit local access to trusted users and monitor for unusual behavior related to libsmsd.so. No known exploits are reported in the wild at this time.

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Technical Details

Gcve Source
db.gcve.eu
Osv Id
GHSA-2245-mc68-9v34
Osv Schema Version
1.4.0
Aliases
["CVE-2026-21067"]
Ecosystems
[]
Database Specific Severity
MODERATE
Cvss Version
4.0

Threat ID: 6a79f0e1bf8831d539f62ba4

Added to database: 08/10/2026, 15:40:17 UTC

Last enriched: 08/10/2026, 16:04:03 UTC

Last updated: 08/11/2026, 03:40:59 UTC

Views: 5

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