CVE-2023-28450
HIGHCVSS 7.5/10EPSS 1.33%
Last modified
CVE-2023-28450 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An issue was discovered in Dnsmasq before 2.90. The default maximum EDNS.0 UDP packet size was set to 4096 but should be 1232 because of DNS Flag Day 2020.. EPSS estimates a 1.33% chance of exploitation in the next 30 days.
Description
An issue was discovered in Dnsmasq before 2.90. The default maximum EDNS.0 UDP packet size was set to 4096 but should be 1232 because of DNS Flag Day 2020.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Thekelleys | Dnsmasq | < 2.90 |
References
- https://capec.mitre.org/data/definitions/495.htmlNot Applicable
- https://capec.mitre.org/data/definitions/495.htmlNot Applicable
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2023-28450?
An issue was discovered in Dnsmasq before 2.90. The default maximum EDNS.0 UDP packet size was set to 4096 but should be 1232 because of DNS Flag Day 2020.
How severe is CVE-2023-28450?
CVE-2023-28450 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.33% probability of exploitation in the next 30 days.
How do I fix CVE-2023-28450?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
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.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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Are you affected by CVE-2023-28450?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST