CVE & CISA-KEV Catalog

CVE-2021-45034

HIGHEPSS 82th pctl
7.5
CVSS v3
NVD

Description

A vulnerability has been identified in CP-8000 MASTER MODULE WITH I/O -25/+70°C (All versions < V16.20), CP-8000 MASTER MODULE WITH I/O -40/+70°C (All versions < V16.20), CP-8021 MASTER MODULE (All versions < V16.20), CP-8022 MASTER MODULE WITH GPRS (All versions < V16.20). The web server of the affected system allows access to logfiles and diagnostic data generated by a privileged user. An unauthenticated attacker could access the files by knowing the corresponding download links.

How to fix

Remediation Available
cp-8000 master module with i\/o -25\/\+70 firmwareNVD
Affected:< 16.20Fixed in:16.20CVE-2021-45034derived from NVD
cp-8000 master module with i\/o -40\/\+70 firmwareNVD
Affected:< 16.20Fixed in:16.20CVE-2021-45034derived from NVD
cp-8021 master module firmwareNVD
Affected:< 16.20Fixed in:16.20CVE-2021-45034derived from NVD
cp-8022 master module with gprs firmwareNVD
Affected:< 16.20Fixed in:16.20CVE-2021-45034derived from NVD

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Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityNone
AvailabilityNone

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

Exploit Intelligence

2.31%probability of exploitation in 30 days
82ndpercentile

Elevated risk: more likely to be exploited than 82% of all known CVEs.

References

Related Vulnerabilities

Other CWE-284 (Improper Access Control) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2023-27350Critical9.8100%KEV + RansomFix
CVE-2019-1653High7.5100%KEV-
CVE-2023-23752Medium5.3100%KEVFix
CVE-2023-38205High7.5100%KEV-
CVE-2023-29298High7.5100%KEV-
CVE-2024-27348Critical9.899%KEVFix

Common questions

How do I fix CVE-2021-45034?

Published advisories record a fix for 4 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2021-45034 being actively exploited?

Not that we know of. CVE-2021-45034 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 2.3% is the estimated probability that it will be exploited in the next 30 days. That is higher than 82% of all scored CVEs.

How severe is CVE-2021-45034?

CVE-2021-45034 has a CVSS v3 base score of 7.5, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2021-45034 affect?

Published advisories record a fix for cp-8000 master module with i\/o -25\/\+70 firmware (NVD), cp-8000 master module with i\/o -40\/\+70 firmware (NVD), cp-8021 master module firmware (NVD), cp-8022 master module with gprs firmware (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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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.