Cyber Resilience

CVE-2021-20862

Medium

Published: 01 December 2021

Published
01 December 2021
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 4.3 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
EPSS Score 0.0010 27.6th percentile
Risk Priority 9 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-20862 is a medium-severity an unspecified weakness vulnerability in Elecom Wrc-1167Gst2 Firmware. Its CVSS base score is 4.3 (Medium).

Operationally, ranked at the 27.6th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Improper access control vulnerability in ELECOM routers (WRC-1167GST2 firmware v1.25 and prior, WRC-1167GST2A firmware v1.25 and prior, WRC-1167GST2H firmware v1.25 and prior, WRC-2533GS2-B firmware v1.52 and prior, WRC-2533GS2-W firmware v1.52 and prior, WRC-1750GS firmware v1.03 and prior, WRC-1750GSV firmware v2.11…

more

and prior, WRC-1900GST firmware v1.03 and prior, WRC-2533GST firmware v1.03 and prior, WRC-2533GSTA firmware v1.03 and prior, WRC-2533GST2 firmware v1.25 and prior, WRC-2533GST2SP firmware v1.25 and prior, WRC-2533GST2-G firmware v1.25 and prior, and EDWRC-2533GST2 firmware v1.25 and prior) allows a network-adjacent unauthenticated attacker to bypass access restriction, and to obtain anti-CSRF tokens and change the product's settings via unspecified vectors.

CWE(s)

Related Threats

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

Affected Assets

elecom
wrc-1167gst2 firmware
≤ 1.25
elecom
wrc-1167gst2a firmware
≤ 1.25
elecom
wrc-1167gst2h firmware
≤ 1.25
elecom
wrc-2533gs2-b firmware
≤ 1.52
elecom
wrc-2533gs2-w firmware
≤ 1.52
elecom
wrc-1750gs firmware
≤ 1.03
elecom
wrc-1750gsv firmware
≤ 2.11
elecom
wrc-1900gst firmware
≤ 1.03
elecom
wrc-2533gst firmware
≤ 1.03
elecom
wrc-2533gst2 firmware
≤ 1.25
+4 more product configuration(s) — see NVD for full list

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References