CVE-2023-28116 is a critical out-of-bounds write vulnerability affecting Contiki-NG versions 4.8 and prior, specifically within the BLE L2CAP module. This flaw allows an attacker to trigger a buffer overflow by sending large packets, as the default PACKETBUF_SIZE is larger than the actual buffer. With a CVSS score of 9.8 (CRITICAL), this vulnerability is remotely exploitable with low attack complexity, potentially leading to complete compromise of confidentiality, integrity, and availability. While there is no evidence of active exploitation or public exploit code, and community discussion is minimal, the high severity warrants immediate patching or manual application of the fix available in the Contiki-NG "develop" branch.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 4.8CPE matchmatch criteria | cpe:2.3:o:contiki-ng:contiki-ng:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
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The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.