Is CVE-2021-20151 in the CISA KEV catalog?

No. CVE-2021-20151 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-20151?

CVE-2021-20151 has a CVSS v3 base score of 10.0 (CRITICAL).

What is the EPSS score for CVE-2021-20151?

CVE-2021-20151 has an EPSS score of 1.60% (73th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2021-20151?

No published fix for CVE-2021-20151 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2021-20151

CRITICALEPSS 73th pctl

10.0

CVSS v3

NVD

Description

Trendnet AC2600 TEW-827DRU version 2.08B01 contains a flaw in the session management for the device. The router's management software manages web sessions based on IP address rather than verifying client cookies/session tokens/etc. This allows an attacker (whether from a different computer, different web browser on the same machine, etc.) to take over an existing session. This does require the attacker to be able to spoof or take over original IP address of the original user's session.

CWE-384

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Exploit Intelligence

1.60%probability of exploitation in 30 days

73rdpercentile

Elevated risk: more likely to be exploited than 73% of all known CVEs.

References

Third-Party Advisory1

tenable.com

Related Vulnerabilities

Other CWE-384 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2018-11714	Critical	9.8	37%	-	-
CVE-2018-18925	Critical	9.8	32%	-	-
CVE-2019-12258	High	7.5	23%	-	Fix
CVE-2018-17199	High	7.5	20%	-	Fix
CVE-2019-10008	High	8.8	20%	-	-
CVE-2024-50339	Medium	5.3	20%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.