Cyber Resilience

CVE-2021-44864

MediumPublic PoC

Published: 08 February 2022

Published
08 February 2022
Modified
21 November 2024
KEV Added
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Patch
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CVSS Score v3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0330 87.5th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-44864 is a medium-severity Classic Buffer Overflow (CWE-120) vulnerability in Tp-Link Wn886N Firmware. Its CVSS base score is 6.5 (Medium).

Operationally, ranked in the top 12.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

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.

CWE(s)
CWE-120

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

tp-link
wn886n firmware
1.0.1

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SC-27 Platform-independent Applications
addresses: CWE-120

Platform-independent managed code eliminates the need for unchecked native buffer copies that are the root cause of classic buffer overflows.

References