What is CVE-2021-46122?

CVE-2021-46122 is a high-severity vulnerability in Tp-link Tl-wr840n, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.2/10. Published 2022-04-18.

How severe is CVE-2021-46122?

High severity. CVSS v3 base score is 7.2 out of 10.

Buffer overflow in Tp-link Tl-wr840n

CVE-2021-46122

Tp-Link TL-WR840N (EU) v6.20 Firmware (0.9.1 4.17 v0001.0 Build 201124 Rel.64328n) is vulnerable to Buffer Overflow via the Password reset feature.

Vulnerability class: Buffer Overflow

EPSS: 0.015 (72.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Tp-link Tl-wr840n — versions 6.20
Tp-link Tl-wr840n_firmware — versions 0.9.1_4.17_v0001.0
N/a — versions n/a

Weakness classification (CWE)

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

References

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

Frequently asked questions

What is CVE-2021-46122?: CVE-2021-46122 is a high-severity vulnerability in Tp-link Tl-wr840n, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.2/10. Published 2022-04-18.
How severe is CVE-2021-46122?: High severity. CVSS v3 base score is 7.2 out of 10.