Search/CVE-2021-20862
● CVE — Medium

CVE-2021-20862

VendorelecomProductwrc-1167gst2 firmware, wrc-2533gst2 firmware, edwrc-2533gst2 firmware, wrc-1167gst2a firmware, wrc-1167gst2h firmware, wrc-1750gs firmware, wrc-1750gsv firmware, wrc-1900gst firmware, wrc-2533gs2-b firmware, wrc-2533gs2-w firmware, wrc-2533gst2-g firmware, wrc-2533gst2sp firmware, wrc-2533gst firmware, wrc-2533gsta firmwareDiscoveredDec 1, 2021UpdatedNov 21, 2024

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 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.

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CVSS v3.1
4.3 MEDIUM
EPSS
0.38%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
0
sources referencing this CVE
Related IOCs
0
seen in the same coverage
EPSS Trend
Aug 16, 2026 → Sep 25, 2026
▲ 0.01pp
0.37% → 0.38% over 2 tracked changes
CVSS v3.1 Detail
Attack VectorADJACENT
Attack ComplexityLOW
Privileges RequiredNONE
User InteractionNONE
ScopeUNCHANGED
ConfidentialityNONE
IntegrityLOW
AvailabilityNONE
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Connections
14 relationships
Timeline
disclosure → media coverage
Dec 1, 2021
Disclosure — published as a CVE record. · last revised by NVD Nov 21, 2024