Cyber Resilience

CVE-2021-27404

MediumPublic PoC

Published: 19 February 2021

Published
19 February 2021
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS Score 0.0016 37.1th percentile
Risk Priority 12 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-27404 is a medium-severity Open Redirect (CWE-601) vulnerability in Asus Askey Rtf8115Vw Firmware. Its CVSS base score is 6.1 (Medium).

Operationally, ranked at the 37.1th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

Askey RTF8115VW BR_SV_g11.11_RTF_TEF001_V6.54_V014 devices allow injection of a Host HTTP header.

CWE(s)
CWE-601

Related Threats

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

Affected Assets

asus
askey rtf8115vw firmware
br_sv_g11.11_rtf_tef001_v6.54_v014

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.

AT-2 Literacy Training and Awareness
addresses: CWE-601

Security awareness includes verifying URLs and avoiding untrusted redirects that lead to malicious sites.

SI-10 Information Input Validation
addresses: CWE-601

Validates redirect targets and URLs to ensure they conform to allowed destinations.

References