CVE-2025-58341 is a vulnerability discovered in the Wi-Fi drivers of several Samsung Exynos processors, including models 980, 850, 1080, 1280, 1330, 1380, 1480, 1580, and wearable processors W920, W930, and W1000. The flaw arises from unbounded memory allocation triggered by writing a large buffer to the /proc/driver/unifi0/ap_cert_disable_ht_vht interface, a procfs entry used for driver configuration. This unbounded allocation can exhaust kernel memory resources, leading to a denial-of-service (DoS) condition by crashing or severely degrading the kernel's operation. The vulnerability is classified under CWE-770 (Allocation of Resources Without Limits or Throttling). The CVSS v3.1 base score is 6.2, reflecting a medium severity with an attack vector limited to local access (AV:L), low attack complexity (AC:L), no privileges required (PR:N), no user interaction (UI:N), unchanged scope (S:U), no impact on confidentiality or integrity (C:N/I:N), and high impact on availability (A:H). Exploitation requires the attacker to have local access to the device to write to the vulnerable procfs interface, but no authentication or user interaction is needed. No patches or known exploits are currently available, indicating the vulnerability is newly disclosed and unexploited in the wild. The affected processors are widely used in Samsung mobile phones and wearables, which are prevalent in consumer and enterprise environments globally.

For European organizations, the primary impact of CVE-2025-58341 is the potential for denial-of-service attacks on devices running affected Samsung Exynos processors. This could disrupt mobile communications, wearable device functionality, and any business processes relying on these devices. While confidentiality and integrity remain unaffected, availability issues could lead to operational downtime, loss of productivity, and potential disruption of critical mobile-dependent services. Enterprises using Samsung mobile devices for secure communications or as part of their IoT infrastructure may experience interruptions. Additionally, organizations providing mobile services or managing fleets of Samsung devices could face increased support costs and reputational damage if devices become unstable or unusable. The lack of known exploits reduces immediate risk, but the vulnerability's presence in widely deployed hardware necessitates proactive mitigation to prevent future exploitation.

To mitigate CVE-2025-58341, organizations should first restrict access to the /proc/driver/unifi0/ap_cert_disable_ht_vht interface to trusted users only, ideally limiting write permissions to root or equivalent privileged accounts. Monitoring systems should be configured to detect unusual memory usage patterns or kernel crashes indicative of exploitation attempts. Device management policies should enforce the use of updated firmware and drivers once Samsung releases patches addressing this vulnerability. In the interim, disabling or restricting features that interact with the vulnerable procfs entry may reduce exposure. Network segmentation and endpoint protection can help contain potential local attacks. For enterprise environments, deploying Mobile Device Management (MDM) solutions to enforce security policies and monitor device health is recommended. Finally, organizations should maintain awareness of vendor advisories and apply updates promptly upon release.