VulnerabilityAnalyzed

CVE-2019-25686

HIGH 8.7EPSS 0.47%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.47%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Core FTP 2.0 build 653 contains a denial of service vulnerability in the PBSZ command that allows unauthenticated attackers to crash the service by sending a malformed command with an oversized buffer. Attackers can send a PBSZ command with a payload exceeding 211 bytes to trigger an access violation and crash the FTP server process.

CVSS 4.0: 8.7 HIGHCVSS: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/M
EPSS: 0.47% probability · 39th percentile
CISA KEV: Not listed
Weakness: CWE-306
Affected: coreftp/core ftp
Source: disclosure@vulncheck.com

References

http://coreftp.com/server/download/archive/CoreFTPServer653.exeProduct
http://www.coreftp.com/Product
https://www.exploit-db.com/exploits/46532Exploit, VDB Entry
https://www.vulncheck.com/advisories/core-ftp-build-653-pbsz-unauthenticated-denial-of-serviceThird Party Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.