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CVE-2020-37119

29
FAUCET Score

CVE-2020-37119 is a critical buffer overflow vulnerability affecting Nsauditor versions 3.0.28 and 3.2.1.0, specifically within its DNS Lookup tool. This flaw allows unauthenticated attackers to execute arbitrary code by crafting a malicious DNS query payload that overwrites memory, bypasses ASLR, and executes shellcode. With a CVSS score of 9.8 (Critical), the vulnerability presents a high risk due to its network-based attack vector, low complexity, and potential for complete compromise of confidentiality, integrity, and availability. Currently, there is no evidence of active exploitation, nor are there publicly available exploit modules in Metasploit or Nuclei, and it has received no community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
3.0.28CPE matchmatch criteria
cpe:2.3:a:nsasoft:nsauditor:3.0.28:*:*:*:*:*:*:*
3.2.1.0CPE matchmatch criteria
cpe:2.3:a:nsasoft:nsauditor:3.2.1.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

8.4HIGH

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
ACTIVE
VS Confidentiality
HIGH
VS Integrity
HIGH
VS Availability
HIGH
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.61%
Probability of exploitation in next 30 days
EPSS Percentile
45.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0061 is in the 26th percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

exploit-db.com / exploits/48350
ExploitThird Party AdvisoryVDB Entry
nsauditor.com
Product
vulncheck.com / advisories/nsauditor-buffer-overflow-sehaslr-bypass-bytes-overwrite
Broken Link