VulnerabilityModified
CVE-2022-4873
On Netcomm router models NF20MESH, NF20, and NL1902 a stack based buffer overflow affects the sessionKey parameter.
CRITICAL 9.8EPSS 7.17%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (7.17%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 7.17% probability · 94th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- netcommwireless/nf20 firmware · netcommwireless/nf20mesh firmware · netcommwireless/nl1902 firmware
- Source
- cret@cert.org
References
- https://github.com/scarvell/advisories/blob/main/2022_netcomm_nf20mesh_unauth_rce.mdExploit, Third Party Advisory
- https://github.com/scarvell/advisories/blob/main/2022_netcomm_nf20mesh_unauth_rce.mdExploit, Third Party Advisory
- https://www.kb.cert.org/vuls/id/986018
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.