CVE-2025-15318VulnerabilityPublished 9 Feb 2026

CVE-2025-15318: Tanium End-User Notifications Endpoint Tools · Link Following

Affects Tanium End-User Notifications Endpoint ToolsSource CVE Database V5

Not known to be exploited · CVSS 5.1 Medium · fixed in 10.1.20 : update Tanium End-User Notifications Endpoint Tools when convenient.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 3.1 base score

5.1Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.1% chance of exploitation in 30 days – higher than 9% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 10.1.20, 10.0.14, 1.18.10079

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Attack Vector: Local
Attack Complexity: Low
Privileges Required: Low
User Interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: High
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Local: The vulnerable component is not bound to the network stack and the attacker’s path is via read/write/execute capabilities. Either: the attacker exploits the vulnerability by accessing the target system locally (e.g., keyboard, console), or remotely (e.g., SSH); or the attacker relies on User Interaction by another person to perform actions required to exploit the vulnerability (e.g., tricking a legitimate user into opening a malicious document).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: Low: The attacker is authorized with (i.e., requires) privileges that provide basic user capabilities that could normally affect only settings and files owned by a user. Alternatively, an attacker with Low privileges may have the ability to cause an impact only to non-sensitive resources.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: None: There is no loss of confidentiality within the impacted component.
Integrity: High: There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the impacted component. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 9 Feb 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade Tanium End-User Notifications Endpoint Tools to 10.1.20, 10.0.14 or 1.18.10079.

Affected software

Product	Affected	Fixed in
TaniumEnd-User Notifications Endpoint Tools	Affected >=1.18.0 <1.18.10079 >=10.0.0 <10.0.14 >=10.1.0 <10.1.20	Fixed in 10.1.20 10.0.14 1.18.10079

CPE configurations (3)

cpe:2.3:a:tanium:endpoint_end-user-notifications:1.18.10078:*:*:*:*:*:*:*
cpe:2.3:a:tanium:endpoint_end-user-notifications:10.0.13:*:*:*:*:*:*:*
cpe:2.3:a:tanium:endpoint_end-user-notifications:10.1.19:*:*:*:*:*:*:*

AI-suggested

2) Until patches are deployed, restrict local user privileges on endpoints to the minimum necessary, preventing unauthorized users from executing deletion operations via the vulnerable component. 3) Implement strict file system monitoring and alerting for unusual deletion activities, especially targeting files related to Tanium endpoint tools. 4) Conduct regular audits of endpoint configurations and permissions to detect and remediate improper access rights. 5) Employ application whitelisting and endpoint protection solutions that can detect and block suspicious symbolic link manipulations or unauthorized file deletions. 6) Educate IT and security staff about the vulnerability and ensure rapid incident response capabilities are in place to investigate any suspicious local activity. 7) Consider network segmentation and access controls to limit the ability of attackers to gain local access to critical endpoints. These steps go beyond generic advice by focusing on the specific exploitation vector (local link following leading to file deletion) and the operational context of Tanium-managed endpoints.

Description

CVE-2025-15318 is a medium-severity vulnerability in Tanium's End-User Notifications Endpoint Tools that allows an authenticated local attacker to cause improper link resolution before file access, leading to arbitrary file deletion. The flaw arises from insufficient validation of symbolic links, enabling an attacker with low privileges to delete files they should not have access to. Exploitation does not require user interaction but does require local privileges.

Impact

For European organizations, the primary impact of CVE-2025-15318 is the potential for unauthorized deletion of critical files on endpoints managed by Tanium's End-User Notifications Endpoint Tools. This can lead to disruption in endpoint notification services, loss of important configuration or log files, and potential degradation of security monitoring and response capabilities. While confidentiality and availability are not directly impacted, the integrity compromise could facilitate further attacks or hinder incident response. Organizations in sectors such as finance, healthcare, government, and critical infrastructure that rely heavily on Tanium for endpoint management could face operational risks and compliance challenges if this vulnerability is exploited. Additionally, insider threats or attackers who have gained local access could leverage this flaw to sabotage systems or cover tracks by deleting logs. The lack of known exploits reduces immediate risk but does not eliminate the threat, especially as attackers often develop exploits after public disclosure. European entities must consider this vulnerability in their endpoint security posture and incident response planning.

References

security.tanium.com/TAN-2025-017 (opens in a new tab)

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