CVE-2022-33988 json
dproxy-nexgen (aka dproxy nexgen) re-uses the DNS transaction id (TXID) value from client queries, which allows attackers (able to send que…
published 2022-08-15 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-37021
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.2%
- EPSS 1.2% chance of exploitation in 30 days, percentile 69%
- public exploits
- 0
- none known
Summary
dproxy-nexgen (aka dproxy nexgen) re-uses the DNS transaction id (TXID) value from client queries, which allows attackers (able to send queries to the resolver) to conduct DNS cache-poisoning attacks because the TXID value is known to the attacker.
Exploit prediction
1.23% chance of exploitation in the next 30 days, higher than 69% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- openwall.com https://www.openwall.com/lists/oss-security/2022/08/14/3 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
Classification
- Weakness
-
- CWE-444 Inconsistent Interpretation of HTTP Requests
References
-
openwall.com
/lists/oss-security/2022/08/14/3
exploit, mailing-list, third-party-advisory
-
sourceforge.net
/projects/dproxy/
product, third-party-advisory
-
usenix.org
/conference/usenixsecurity22/presentation/jeitner
third-party-advisory
Sources
- CVE List CVE-2022-33988
- NVD CVE-2022-33988
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