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Fencer Vulns
high 8.8

CVE-2023-45687 json

Authentication bypass via session fixation in Titan MFT and Titan SFTP servers

published 2023-10-16 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-49976

cvss
8.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.4%
EPSS 1.4% chance of exploitation in 30 days, percentile 72%
public exploits
0
none known

Summary

A session fixation vulnerability in South River Technologies' Titan MFT and Titan SFTP servers on Linux and Windows allows an attacker to bypass the server's authentication if they can trick an administrator into authorizating a session id of their choosing

Patch / fix

  • southrivertech titan_mft_server 2.0.18
  • southrivertech titan_sftp_server 2.0.18

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

1.38% chance of exploitation in the next 30 days, higher than 72% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • rapid7.com https://www.rapid7.com/blog/post/2023/10/16/multiple-vulnerabilities-in-south-river-technologies-titan-mft-and-titan-sftp-fixed/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

  • South River Technologies Titan MFT
  • South River Technologies Titan SFTP
  • southrivertech titan_mft_server
  • southrivertech titan_sftp_server

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.