What is CVE-2022-26639?

CVE-2022-26639 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 2022-03-28.

How severe is CVE-2022-26639?

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

Buffer overflow in Tp-link Tl-wr840n

CVE-2022-26639

TP-LINK TL-WR840N(ES)_V6.20 was discovered to contain a buffer overflow via the DNSServers parameter.

Vulnerability class: Buffer Overflow

EPSS: 0.012 (65.7th 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 0.9.1.4.16
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-2022-26639?: CVE-2022-26639 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 2022-03-28.
How severe is CVE-2022-26639?: High severity. CVSS v3 base score is 7.2 out of 10.