CVE-2016-7796

The manager_dispatch_notify_fd function in systemd allows local users to cause a denial of service (system hang) via a zero-length message received over a notify socket, which causes an error to be returned and the notification handler to be disabled.

CVSS 5.5 · Medium

External lookup

Potential internet exposure

Potential exposure only — not proof of vulnerability.Shodan results indicate potentially internet-exposed products, not confirmed vulnerable systems. They do not confirm that any returned system is vulnerable to CVE-2016-7796.

Product-level CPE searches intentionally omit version fields and NVD version-range or configuration certainty. Verify the exact product version and configuration independently.

Sign-in required. Shodan requires you to sign in to run these filter searches.

Product CPE queries

Derived from this CVE's existing NVD CPE 2.3 records; the application, operating-system, or hardware part is retained.

cpe:2.3:o:novell:suse_linux_enterprise_desktopSearch this product on Shodan
cpe:2.3:o:novell:suse_linux_enterprise_serverSearch this product on Shodan
cpe:2.3:o:novell:suse_linux_enterprise_server_for_sapSearch this product on Shodan
cpe:2.3:a:novell:suse_linux_enterprise_software_development_kitSearch this product on Shodan
cpe:2.3:o:redhat:enterprise_linux_desktopSearch this product on Shodan
cpe:2.3:o:redhat:enterprise_linux_hpc_nodeSearch this product on Shodan
cpe:2.3:o:redhat:enterprise_linux_serverSearch this product on Shodan
cpe:2.3:o:redhat:enterprise_linux_workstationSearch this product on Shodan
cpe:2.3:a:systemd_project:systemdSearch this product on Shodan

Exact CVE query

Eligible paid Shodan plan required

Shodan's exact vuln: filter is separate from the product searches above and requires an eligible paid Shodan plan.

vuln:CVE-2016-7796Search this CVE on Shodan

These are outbound search links only. cvebuzz makes no Shodan API call, uses no Shodan API key, and does not display live result counts.

Metadata

Canonical fields

NVD status

Unavailable

Published

Oct 13, 2016

Modified

Jun 17, 2026

Official record

Authoritative NVD record

CVSS vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE IDs

Vendor classifications

How this vector reads

CVSS 3.0 base metrics decoded below. This explanation does not recalculate or change the NVD score.

Attack Vector (AV): Local. The attacker needs local access to the vulnerable system.
Attack Complexity (AC): Low. No special conditions beyond the attacker-controlled steps are required.
Privileges Required (PR): Low. The attacker needs basic user-level privileges.
User Interaction (UI): None. Exploitation does not require another user to act.
Scope (S): Unchanged. Impacts remain within the vulnerable security authority.
Confidentiality Impact (C): None. There is no direct impact to this security property.
Integrity Impact (I): None. There is no direct impact to this security property.
Availability Impact (A): High. There is a total or serious impact to this security property.

Signals

Exploitation indicators

0 stored signals · no KEV · 0 OTX pulses