VulnerabilityDeferred

CVE-2024-11857

Bluetooth HCI Adaptor from Realtek has a Link Following vulnerability.

HIGH 8.5EPSS 0.19%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.19%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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.

CVSS 4.0: 8.5 HIGHCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS: 0.19% probability · 9th percentile
CISA KEV: Not listed
Weakness: CWE-59
Source: twcert@cert.org.tw

References

https://www.twcert.org.tw/en/cp-139-10161-fa1b5-2.html
https://www.twcert.org.tw/tw/cp-132-10160-76012-1.html

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.