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CVE-2021-34345

CRITICAL
Published 2021-09-10T04:00:26.223988Z
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Expert Analysis

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CVSS Score

V3.1
9.8
/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.012
probability
of exploitation in the wild

There is a 1.2% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.781
Higher than 78.1% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Description

A stack buffer overflow vulnerability has been reported to affect QNAP device running NVR Storage Expansion. If exploited, this vulnerability allows attackers to execute arbitrary code. We have already fixed this vulnerability in the following versions of NVR Storage Expansion: NVR Storage Expansion 1.0.6 ( 2021/08/03 ) and later

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

QNAP Systems Inc.

NVR Storage Expansion

Affected Versions:

unspecified

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed CRITICAL

GHSA-vhmr-2r99-xhqw

Advisory Details

A stack buffer overflow vulnerability has been reported to affect QNAP device running NVR Storage Expansion. If exploited, this vulnerability allows attackers to execute arbitrary code. We have already fixed this vulnerability in the following versions of NVR Storage Expansion: NVR Storage Expansion 1.0.6 ( 2021/08/03 ) and later

CVSS Scoring

CVSS Score

9.0

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2021-34345
WEB https://www.qnap.com/en/security-advisory/qsa-21-36

Advisory provided by GitHub Security Advisory Database. Published: May 24, 2022, Modified: May 24, 2022

References

https://www.qnap.com/en/security-advisory/qsa-21-36
Published: 2021-09-10T04:00:26.223988Z
Last Modified: 2024-09-16T22:09:54.800Z
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