CVE-2026-21551: Input Validation
Published Aug 3, 2026
·Updated
In modem, there is a possible improper input validation. This could lead to remote denial of service with no additional execution privileges needed
Event History
Aug 3, 2026
CVE Published
via MITRE·07:18 AM
Data Sourced
via MITRE·07:18 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·08:17 AM
DescriptionSeverityWeakness
Frequently Asked Questions
1
What is the severity of CVE-2026-21551?
The severity of CVE-2026-21551 is rated as high with a score of 7.5.
2
What does CVE-2026-21551 indicate?
CVE-2026-21551 indicates a possible improper input validation that could lead to remote denial of service.
3
How can I mitigate CVE-2026-21551?
To mitigate CVE-2026-21551, ensure that the modem firmware is updated to the latest version provided by the vendor.
4
What kind of attack is possible due to CVE-2026-21551?
CVE-2026-21551 could lead to a remote denial of service attack without requiring additional execution privileges.
5
Who is affected by CVE-2026-21551?
Devices utilizing the affected modem that lack proper input validation are at risk due to CVE-2026-21551.