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CVE-2022-33990

24
FAUCET Score

CVE-2022-33990 describes a cache poisoning vulnerability in dproxy-nexgen, where the DNS proxy misinterprets special characters in domain names, leading to the caching of incorrect domain-to-IP mappings. This unauthenticated, low-complexity network attack has a CVSS score of 7.5 (High) due to its potential for high integrity impact by redirecting users to malicious sites. While no public exploits, Metasploit modules, or Nuclei templates are currently available, and there is minimal community discussion or media coverage, organizations using dproxy-nexgen should still address this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:dproxy-nexgen_project:dproxy-nexgen:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.97%
Probability of exploitation in next 30 days
EPSS Percentile
58.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0097 is in the 33rd percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

sourceforge.net / projects/dproxy
Third Party Advisory
openwall.com / lists/oss-security/2022/08/14/3
ExploitMailing ListThird Party Advisory
usenix.org / conference/usenixsecurity21/presentation/jeitner
Third Party Advisory
usenix.org / conference/usenixsecurity22/presentation/jeitner
Third Party Advisory