What is CVE-2022-40112?

CVE-2022-40112 is a high-severity vulnerability in Totolink A3002r, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2022-09-06.

How severe is CVE-2022-40112?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2022-40112 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Totolink A3002r

CVE-2022-40112

TOTOLINK A3002R TOTOLINK-A3002R-He-V1.1.1-B20200824.0128 is vulnerable Buffer Overflow via the hostname parameter in binary /bin/boa.

Vulnerability class: Buffer Overflow

EPSS: 0.007 (50.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Totolink A3002r
Totolink A3002r_firmware — versions 1.1.1-b20200824.0128
N/a — versions n/a

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

Public proof-of-concept exploits

References

cve@mitre.org (Third Party Advisory, x_refsource_MISC, Broken Link)

Frequently asked questions

What is CVE-2022-40112?: CVE-2022-40112 is a high-severity vulnerability in Totolink A3002r, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2022-09-06.
How severe is CVE-2022-40112?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2022-40112 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.