What is CVE-2021-44864?

CVE-2021-44864 is a medium-severity vulnerability in TP-Link Wn886n, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.5/10. Published 2022-02-08.

How severe is CVE-2021-44864?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2021-44864 known to be exploited?

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

Buffer overflow in TP-Link Wn886n

CVE-2021-44864

TP-Link WR886N 3.0 1.0.1 Build 150127 Rel.34123n is vulnerable to Buffer Overflow. Authenticated attackers can crash router httpd services via /userRpm/PingIframeRpm.htm request which contains redundant & in parameter.

Vulnerability class: Buffer Overflow

EPSS: 0.102 (95.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Tp-link Wn886n — versions 3.0
Tp-link Wn886n_firmware — versions 1.0.1
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 (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-44864?: CVE-2021-44864 is a medium-severity vulnerability in TP-Link Wn886n, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.5/10. Published 2022-02-08.
How severe is CVE-2021-44864?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2021-44864 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.