Out-of-bounds Read in Contiki-Ng
CVE-2020-12141
An out-of-bounds read in the SNMP stack in Contiki-NG 4.4 and earlier allows an attacker to cause a denial of service and potentially disclose information via crafted SNMP packets to snmp_ber_decode_string_len_buffer in os/net/app-layer/snmp/snmp-ber.c.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.
EPSS exploit prediction
EPSS: 0.016 (74.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 74.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000
Affected products
Weakness classification (CWE)
References
- twitter.com/ScepticCtf (Third Party Advisory)
- github.com/contiki-ng/contiki-ng/commit/12c824386ab60de757de5001974d73b32e19ad71 (Patch, Third Party Advisory)
- github.com/contiki-ng/contiki-ng/pull/1355 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-12141?
- CVE-2020-12141 is a critical-severity vulnerability in Contiki-Ng, classified under Out-of-bounds Read. CVSS score: 9.1/10. Published 2021-10-19.
- How severe is CVE-2020-12141?
- Critical severity. CVSS v3 base score is 9.1 out of 10.