UpHeron
All vulnerabilities

Servers and applications

CVE-2019-19270

An issue was discovered in tls_verify_crl in ProFTPD through 1.3.6b. Failure to check for the appropriate field of a CRL entry (checking twice for subject, rather than once for subject and once for issuer) prevents some valid CRLs from being taken into account, and can allow clients whose certificates have been revoked to proceed with a connection to the server.

Severity
High 7.5
Published
26 Nov 2019
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
1.1% in the next 30 daysHigher than 66% of CVEs. EPSS by FIRST, 10 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
ProFTPDServers and applications · cpe:a:proftpd:proftpd
  • Every version up to 1.3.5
  • Version 1.3.6-alpha
  • Version 1.3.6-beta
  • Version 1.3.6

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2019-19270
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2019-19270