PatchTheCVECVE-2017-15133: A denial of service flaw was found in miekg-dns before 1.0.4
CVE-2017-15133 is a high-severity flaw (CVSS 7.5) affecting miekg-dns. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
A denial of service flaw was found in miekg-dns before 1.0.4. A remote attacker could use carefully timed TCP packets to block the DNS server from accepting new connections.
Why this priority
- High severity
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.5 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 1.9% (top 21%) |
| CISA exploited list | No |
| Weakness | CWE-400 |
| Published | 2018-01-29 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2017-15133?
miekg-dns: upgrade to 1.0.4. Exact commands for each OS are on this page.
Is CVE-2017-15133 being exploited?
CVE-2017-15133 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2017-15133 affect?
CVE-2017-15133 affects miekg-dns. Severity is high (CVSS 7.5). A denial of service flaw was found in miekg-dns before 1.0.4. A remote attacker could use carefully timed TCP packets to block the DNS server from accepting new connections.
How urgent is CVE-2017-15133?
Priority 51/100. High severity; Remotely exploitable, no login, no user action
Related CVEs
- CVE-2019-19794 MEDIUM 5.9 UPGRADE The miekg Go DNS package before 1.1.25, as used in CoreDNS before 1.6.6 and other products, improperly generat