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Fencer Vulns
critical 10.0

CVE-2025-34105 json

DiskBoss Enterprise Stack-Based Buffer Overflow RCE

published 2025-07-15 15 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-21434

cvss
10.0
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.7%
EPSS 1.7% chance of exploitation in 30 days, percentile 76%
public exploits
1
Metasploit

Summary

A stack-based buffer overflow vulnerability exists in the built-in web interface of DiskBoss Enterprise versions 7.4.28, 7.5.12, and 8.2.14. The vulnerability arises from improper bounds checking on the path component of HTTP GET requests. By sending a specially crafted long URI, a remote unauthenticated attacker can trigger a buffer overflow, potentially leading to arbitrary code execution with SYSTEM privileges on vulnerable Windows hosts.

Timeline

  1. First public exploit (Metasploit exploit/windows/http/diskboss_get_bof)
  2. Published

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
15 mo ago

Exploit prediction

1.67% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Metasploit exploit/windows/http/diskboss_get_bof DiskBoss Enterprise GET Buffer Overflow metasploit exploit, excellent rank, 2016-12-05
  • exploit-db.com https://www.exploit-db.com/exploits/40869 referenced PoC, tagged "exploit" by a source, unverified
  • exploit-db.com https://www.exploit-db.com/exploits/42395 referenced PoC, tagged "exploit" by a source, unverified
  • raw.githubusercontent.com https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/http/diskboss_get_bof.rb referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 4.0 10.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CNA 4.0 10.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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

Affected products

  • Flexense DiskBoss Enterprise

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.