Due to missing nil check, sending 0x0a-0x0f HTTP/2 frames will cause a running server to panic

The remote Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.10 / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8430-1 advisory.

    It was discovered that ADSys did not properly handle certain HTTP/2 frames. A remote attacker could     possibly use this issue to cause a denial of service. This issue only affected Ubuntu 26.04 LTS.
    (CVE-2026-27141)

    It was discovered that ADSys did not properly handle certain HTTP/2 SETTINGS frames. A remote attacker     could possibly use this issue to cause a denial of service. (CVE-2026-33814)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Type	Severity
329722	openSUSE 16 Security Update : rclone (openSUSE-SU-2026:21436-1)	Nessus	SuSE Local Security Checks	Local	critical
321182	Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.10 / 26.04 LTS : ADSys vulnerabilities (USN-8430-1)	Nessus	Ubuntu Local Security Checks	Local	high
310201	openSUSE 16 Security Update : rclone (openSUSE-SU-2026:20620-1)	Nessus	SuSE Local Security Checks	Local	critical

Detections

Analytics

CVE-2026-27141

high

Tenable Plugins

critical

high

critical