Vulnerability · Published Jun 2, 2025 · Assigned by twcert
CVE-2024-11857Realtek Bluetooth HCI Adaptor - Privilege Escalation
High 7.8
In plain English
A high-severity security flaw in Bluetooth HCI Adaptor from Realtek. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 11% of all known vulnerabilities).
Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.2%top 89.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Bluetooth HCI Adaptor from Realtek has a Link Following vulnerability. Local attackers with regular privileges can create a symbolic link with the same name as a specific file, causing the product to delete arbitrary files pointed to by the link. Subsequently, attackers can leverage arbitrary file deletion to privilege escalation.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Realtek | Bluetooth HCI Adaptor | 0 – before 1.1.73.1 |
Weakness: CWE-59 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
- https://www.twcert.org.tw/tw/cp-132-10160-76012-1.html third-party-advisory
- https://www.twcert.org.tw/en/cp-139-10161-fa1b5-2.html third-party-advisory