PatchTheCVECVE-2020-14929: Alpine before 2.23 silently proceeds to use an insecure connection after a /tls is sent in certain circumstanc
CVE-2020-14929 is a high-severity flaw (CVSS 7.5) affecting alpine, fedora, debian linux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Alpine before 2.23 silently proceeds to use an insecure connection after a /tls is sent in certain circumstances involving PREAUTH, which is a less secure behavior than the alternative of closing the connection and letting the user decide what they would like to do.
Why this priority
- High severity
- Remotely exploitable, no login, no user action
- On your watchlist
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 | 1.8% (top 21%) |
| CISA exploited list | No |
| Published | 2020-06-19 |
| 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-2020-14929?
alpine: upgrade to 2.23; fedora: mitigate or apply the listed mitigation; debian linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2020-14929 being exploited?
CVE-2020-14929 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-2020-14929 affect?
CVE-2020-14929 affects alpine, fedora, debian linux. Severity is high (CVSS 7.5). Alpine before 2.23 silently proceeds to use an insecure connection after a /tls is sent in certain circumstances involving PREAUTH, which is a less secure behavior than the alternative of closing the connection and letting the user decide w
How urgent is CVE-2020-14929?
Priority 56/100. High severity; Remotely exploitable, no login, no user action; On your watchlist
Software pages
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