Is CVE-2021-36767 in the CISA KEV catalog?

No. CVE-2021-36767 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-36767?

CVE-2021-36767 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2021-36767?

CVE-2021-36767 has an EPSS score of 0.66% (47th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2021-36767?

No published fix for CVE-2021-36767 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2021-36767

CRITICAL

9.8

CVSS v3

NVD

Description

In Digi RealPort through 4.10.490, authentication relies on a challenge-response mechanism that gives access to the server password, making the protection ineffective. An attacker may send an unauthenticated request to the server. The server will reply with a weakly-hashed version of the server's access password. The attacker may then crack this hash offline in order to successfully login to the server.

CWE-916

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.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.66%probability of exploitation in 30 days

47thpercentile

Moderate risk: more likely to be exploited than 47% of all known CVEs.

References

Third-Party Advisory1

raw.githubusercontent.com

Embed a live status badge for CVE-2021-36767

Markdown

[![CVE-2021-36767](https://tridentstack.com/cve/badge/CVE-2021-36767.svg)](https://tridentstack.com/cve/CVE-2021-36767)

HTML

<a href="https://tridentstack.com/cve/CVE-2021-36767"><img src="https://tridentstack.com/cve/badge/CVE-2021-36767.svg" alt="CVE-2021-36767"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

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.