What is CVE-2022-36586?

CVE-2022-36586 is a critical-severity vulnerability in Tenda G3, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2022-09-08.

How severe is CVE-2022-36586?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2022-36586 known to be exploited?

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

Buffer overflow in Tenda G3

CVE-2022-36586

In Tenda G3 US_G3V3.0br_V15.11.0.6(7663)_EN_TDE, there is a buffer overflow vulnerability caused by strcpy in function 0x869f4 in the httpd binary.

Vulnerability class: Buffer Overflow

EPSS: 0.008 (51.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Tenda G3
Tenda G3_firmware — versions 15.11.0.6\(7663\)
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

attilaszia/linux-iot-cves

References

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

Frequently asked questions

What is CVE-2022-36586?: CVE-2022-36586 is a critical-severity vulnerability in Tenda G3, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2022-09-08.
How severe is CVE-2022-36586?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2022-36586 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.