01 Record
CVE-2021-23937
DNS proxy and possible amplification attack
UnratedPUBLISHEDCNA: apache
CNA base scoreUnratedNo CNA CVSS vector
02 Description
DNS proxy and possible amplification attack
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 4.26% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 90.7% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2021-05-25 08:05Z5 YR AGO
- Last updated
- 2024-08-03 19:14Z2 YR AGO
- Reserved
- 2021-01-13
- Assigning CNA
- apache
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-200Exposure of Sensitive Information to an Unauthorized ActorClass
- Data version
- 5.1
- Document digest
- 703e5adc9d76cb8ad1f9f707c00b6fa60491c2241cdc327f5ef882bdacd99886
05 Affected products
VendorProductVersionsPlatforms
Apache Software FoundationApache WicketApache Wicket 9.x to 9.2.0, Apache Wicket 8.x to 8.11.0, Apache Wicket 7.x to 7.17.0, 6.2.0 to < Apache Wicket 6.x*—
06 References
- lists.apache.orghttps://lists.apache.org/thread.html/rc2ef22f90793e158cef65a7e370cdbca023c499d1403d65feeca870d%40%3Cusers.wicket.apache.org%3E
- lists.apache.org[wicket-announce] 20210526 Re: CVE-2021-23937: Apache Wicket: DNS proxy and possible amplification attackhttps://lists.apache.org/thread.html/r127c0c1f3cb71e5bc619ad1e4b898b97c49758d1f20a54042966473e%40%3Cannounce.wicket.apache.org%3E
- lists.apache.org[wicket-users] 20210526 Re: CVE-2021-23937: Apache Wicket: DNS proxy and possible amplification attackhttps://lists.apache.org/thread.html/r127c0c1f3cb71e5bc619ad1e4b898b97c49758d1f20a54042966473e%40%3Cusers.wicket.apache.org%3E
- lists.apache.org[wicket-dev] 20210526 Re: CVE-2021-23937: Apache Wicket: DNS proxy and possible amplification attackhttps://lists.apache.org/thread.html/r8ccbd91b56ebf045d151bd4282bfeea7842a0698a0b76118fca8fe78%40%3Cdev.wicket.apache.org%3E