Vulnerability Details : CVE-2022-4873
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.
Vulnerability category: OverflowMemory Corruption
Products affected by CVE-2022-4873
- cpe:2.3:o:netcommwireless:nf20_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:netcommwireless:nf20mesh_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:netcommwireless:nl1902_firmware:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-4873
0.23%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 62 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-4873
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2022-4873
-
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.Assigned by: cret@cert.org (Secondary)
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2022-4873
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https://github.com/scarvell/advisories/blob/main/2022_netcomm_nf20mesh_unauth_rce.md
advisories/2022_netcomm_nf20mesh_unauth_rce.md at main · scarvell/advisories · GitHubExploit;Third Party Advisory
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