CVE-2020-5591
Last modified
CVE-2020-5591 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. XACK DNS 1.11.0 to 1.11.4, 1.10.0 to 1.10.8, 1.8.0 to 1.8.23, 1.7.0 to 1.7.18, and versions before 1.7.0 allow remote attackers to cause a denial of service condition resulting in degradation of the recursive resolver's performance or compromising the recursive resolver as a reflector in a reflection attack.. EPSS estimates a 1.64% chance of exploitation in the next 30 days.
Description
XACK DNS 1.11.0 to 1.11.4, 1.10.0 to 1.10.8, 1.8.0 to 1.8.23, 1.7.0 to 1.7.18, and versions before 1.7.0 allow remote attackers to cause a denial of service condition resulting in degradation of the recursive resolver's performance or compromising the recursive resolver as a reflector in a reflection attack.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Xack | Xack Dns | <= 1.7.18 |
| Xack | Xack Dns | >= 1.8.0, <= 1.8.23 |
| Xack | Xack Dns | >= 1.10.0, <= 1.10.8 |
| Xack | Xack Dns | >= 1.11.0, <= 1.11.4 |
References
- https://jvn.jp/en/jp/JVN40208370/index.htmlMitigation, Third Party Advisory, VDB Entry
- https://xack.co.jp/info/?ID=622Vendor Advisory
- https://jvn.jp/en/jp/JVN40208370/index.htmlMitigation, Third Party Advisory, VDB Entry
- https://xack.co.jp/info/?ID=622Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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