PatchTheCVECVE-2020-6097: An exploitable denial of service vulnerability exists in the atftpd daemon functionality of atftp 0.7.git20120
CVE-2020-6097 is a high-severity flaw (CVSS 7.5) affecting atftp, debian linux, leap. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
An exploitable denial of service vulnerability exists in the atftpd daemon functionality of atftp 0.7.git20120829-3.1+b1. A specially crafted sequence of RRQ-Multicast requests trigger an assert() call resulting in denial-of-service. An attacker can send a sequence of malicious packets to trigger this vulnerability.
Why this priority
- High severity
- Public exploit reference
- Remotely exploitable, no login, no user action
- On your watchlist
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 7.5 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 2.2% (top 18%) |
| CISA exploited list | No |
| Weakness | CWE-617 |
| Published | 2020-09-10 |
| 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-2020-6097?
atftp: mitigate or apply the listed mitigation; debian linux: mitigate or apply the listed mitigation; leap: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2020-6097 being exploited?
CVE-2020-6097 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-2020-6097 affect?
CVE-2020-6097 affects atftp, debian linux, leap. Severity is high (CVSS 7.5). An exploitable denial of service vulnerability exists in the atftpd daemon functionality of atftp 0.7.git20120829-3.1+b1. A specially crafted sequence of RRQ-Multicast requests trigger an assert() call resulting in denial-of-service. An att
How urgent is CVE-2020-6097?
Priority 62/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action; On your watchlist
Software pages
Related CVEs
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