CVE-2020-12883 is a critical buffer over-read vulnerability affecting the CoAP library in Arm Mbed OS 5.15.3. Specifically, the sn_coap_parser_options_parse() function incorrectly handles CoAP packet parsing, leading to out-of-bounds memory access. With a CVSS score of 9.1, this vulnerability is remotely exploitable with low attack complexity, potentially resulting in high confidentiality impact (information disclosure) and high availability impact (denial of service or system memory access violations). There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
5.15.3CPE matchmatch criteria | cpe:2.3:o:arm:mbed_os:5.15.3:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
No social media mentions found for this CVE.
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.