High severity · published Jan 23, 2026
CVE-2021-47895
Nsauditor 3.2.2.0 - 'Event Description' Denial of Service
7.5
CVSS
0.4%
EPSS
No
On KEV
Description
Nsauditor 3.2.2.0 contains a denial of service vulnerability that allows attackers to crash the application by overwriting the Event Description field with a large buffer. Attackers can generate a 10,000-character 'U' buffer and paste it into the Event Description field to trigger an application crash.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 29% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NS
Nsauditor · Nsauditor
3.2.2.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-47895
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-47895
Exploit
https://www.exploit-db.com/exploits/49568
Product
https://www.nsauditor.com/
Third Party Advisory
https://www.vulncheck.com/advisories/nsauditor-event-description-denial-of-service
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