by Kastro
Paper/Archive/CVE-2022-4873

CVE-2022-4873

Netcomm NF20 — Stack based overflow on Netcomm router models NF20MESH, NF20, and NL1902

EPSS 7%CVSS 9.8
critical.is priorityof 100
48
CVSS 9.8 (NVD, ADP agree)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 94.3.943 × 2018.9No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

On Netcomm router models NF20MESH, NF20, and NL1902 a stack based buffer overflow affects the sessionKey parameter. By providing a specific number of bytes, the instruction pointer is able to be overwritten on the stack and crashes the application at a known location.

Affected

ProductAffectedFixed inSource
NF20R6B025–CNA
NF20MESHR6B025–CNA
NL1902R6B025–CNA

Scores by source

CISA ADP9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refgithub.com/scarvell/advisories/blob/main/2022_netcomm_nf20mesh_unauth_rce.mdrefkb.cert.org/vuls/id/986018