What is CVE-2022-38827?

CVE-2022-38827 is a critical-severity vulnerability in Totolink T6, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2022-09-16.

How severe is CVE-2022-38827?

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

Is CVE-2022-38827 known to be exploited?

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

Buffer overflow in Totolink T6

CVE-2022-38827

TOTOLINK T6 V4.1.5cu.709_B20210518 is vulnerable to Buffer Overflow via cstecgi.cgi

Vulnerability class: Buffer Overflow

Published 2022-09-16 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.122 (96.0th percentile), scored 2026-09-30.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 96.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.120 · newest: 0.122 · change: +0.002

Affected products

Totolink T6 — versions 3
Totolink T6 Firmware — versions 4.1.5cu.709_b20210518

Weakness classification (CWE)

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

Public proof-of-concept exploits

References

github.com/whiter6666/CVE/blob/main/TOTOLINK_T6_V3/setWiFiWpsStart_2.md (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2022-38827?: CVE-2022-38827 is a critical-severity vulnerability in Totolink T6, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2022-09-16.
How severe is CVE-2022-38827?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2022-38827 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.