CVE-2019-25686

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.46% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 40.0% of scored records. A rank, not a probability.

NVD base score

8.7 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Analyzed. NVD last modified this record on 2026-07-24.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-04-05 20:45Z6 MO AGO

Last updated

2026-04-06 15:43Z6 MO AGO

Reserved

2026-04-05

Assigning CNA

VulnCheck

Record state

PUBLISHED

Severity

High (CVSS 8.7)

CNA CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Weaknesses

• CWE-306Missing Authentication for Critical FunctionBase

Data version

5.2

Document digest

1379ebb7dda90c4c2cf74b9e2c9a7f9e68f1dbb51c777f61e6a25737973251d6

• www.exploit-db.comExploitDB-46532https://www.exploit-db.com/exploits/46532exploit
• www.coreftp.comOfficial Product Homepagehttp://www.coreftp.com/product
• coreftp.comProduct Referencehttp://coreftp.com/server/download/archive/CoreFTPServer653.exeproduct
• www.vulncheck.comVulnCheck Advisory: Core FTP 2.0 build 653 PBSZ Unauthenticated Denial of Servicehttps://www.vulncheck.com/advisories/core-ftp-build-653-pbsz-unauthenticated-denial-of-servicethird-party-advisory