CyberSecBulletin
CVE-2025-65078NVD status: Deferred

MXTCT, MSNGM, MSTGM, MXNGM, MXTGM, CSNGV…: Untrusted Search Path

Published Updated By the CyberSecBulletin desk

CVE-2025-65078 is a critical-severity untrusted search path vulnerability in MXTCT, MSNGM, MSTGM, MXNGM, MXTGM, CSNGV, CSTGV, CXTGV, MSNGW, MSTGW, MXTGW, CSTLS, CXTLS, MXTLS, CSTMM, CXTMM, CSTPC, CXTPC, MXTPM, MSNSN, MSTSN, MXTSN, CSNZJ, CSTZJ, CXNZJ, CXTZJ from Lexmark, with a CVSS 4.0 base score of 9.3 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. The record lists version 250.210 as the first without the flaw, so updating MXTCT, MSNGM, MSTGM, MXNGM, MXTGM, CSNGV, CSTGV, CXTGV, MSNGW, MSTGW, MXTGW, CSTLS, CXTLS, MXTLS, CSTMM, CXTMM, CSTPC, CXTPC, MXTPM, MSNSN, MSTSN, MXTSN, CSNZJ, CSTZJ, CXNZJ, CXTZJ to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.57% chance of exploitation within 30 days, which is low compared with other CVEs.

Patch this week

Critical severity: a successful attack would have severe impact.

What to do

  1. Update MXTCT, MSNGM, MSTGM, MXNGM, MXTGM, CSNGV, CSTGV, CXTGV, MSNGW, MSTGW, MXTGW, CSTLS, CXTLS, MXTLS, CSTMM, CXTMM, CSTPC, CXTPC, MXTPM, MSNSN, MSTSN, MXTSN, CSNZJ, CSTZJ, CXNZJ, CXTZJ to 250.210 or a later version.
  2. Update CSTAT, CXTAT, MSLBD, MXLBD, CSLBL, CXLBL, CSLBN, CXLBN, CSTMH, CXTMH, CSTPP, CXTPP, MSLSG, MXLSG to 230.507 or a later version.
  3. Read the advisory on lexmark.com for workarounds and exact fixed builds.
  4. Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.

Affected products and versions

VendorProductAffected versionsFixed in
LexmarkMXTCT, MSNGM, MSTGM, MXNGM, MXTGM, CSNGV, CSTGV, CXTGV, MSNGW, MSTGW, MXTGW, CSTLS, CXTLS, MXTLS, CSTMM, CXTMM, CSTPC, CXTPC, MXTPM, MSNSN, MSTSN, MXTSN, CSNZJ, CSTZJ, CXNZJ, CXTZJbefore 250.210250.210
LexmarkCSTAT, CXTAT, MSLBD, MXLBD, CSLBL, CXLBL, CSLBN, CXLBN, CSTMH, CXTMH, CSTPP, CXTPP, MSLSG, MXLSGbefore 230.507230.507

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
NetworkCan be exploited remotely over a network, including the internet.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Attack requirements
NoneThe attack does not depend on a particular deployment or configuration.
Privileges required
NoneNo account or login is needed.
User interaction
NoneNo action by a victim is required.
Confidentiality (vulnerable system)
HighSerious loss of confidentiality on the vulnerable system.
Integrity (vulnerable system)
HighSerious loss of integrity on the vulnerable system.
Availability (vulnerable system)
HighSerious loss of availability on the vulnerable system.
Confidentiality (other systems)
NoneNo loss of confidentiality on systems beyond the vulnerable one.
Integrity (other systems)
NoneNo loss of integrity on systems beyond the vulnerable one.
Availability (other systems)
NoneNo loss of availability on systems beyond the vulnerable one.

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/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. Scored by CNA.

Official description

An untrusted search path vulnerability has been identified in the Embedded Solutions Framework in various Lexmark devices. This vulnerability can be leveraged by an attacker to execute arbitrary code.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Untrusted Search Path

The product searches for critical resources using an externally-supplied search path that can point to resources that are not under the product's direct control.

How developers prevent this class of flaw

  • Hard-code the search path to a set of known-safe values (such as system directories), or only allow them to be specified by the administrator in a configuration file. Do not allow these settings to be modified by an external party. Be careful to avoid related weaknesses such as CWE-426 and CWE-428.
  • When invoking other programs, specify those programs using fully-qualified pathnames. While this is an effective approach, code that uses fully-qualified pathnames might not be portable to other systems that do not use the same pathnames. The portability can be improved by locating the full-qualified paths in a centralized, easily-modifiable location within the source code, and having the code refer to these paths.
  • Remove or restrict all environment settings before invoking other programs. This includes the PATH environment variable, LD_LIBRARY_PATH, and other settings that identify the location of code libraries, and any application-specific search paths.

More Untrusted Search Path vulnerabilities (CWE-426)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: total).
  3. Record last changed materially (score, affected products, status or references).

References

Other vulnerabilities in MXTCT, MSNGM, MSTGM, MXNGM, MXTGM, CSNGV, CSTGV, CXTGV, MSNGW, MSTGW, MXTGW, CSTLS, CXTLS, MXTLS, CSTMM, CXTMM, CSTPC, CXTPC, MXTPM, MSNSN, MSTSN, MXTSN, CSNZJ, CSTZJ, CXNZJ, CXTZJ

All MXTCT, MSNGM, MSTGM, MXNGM, MXTGM, CSNGV, CSTGV, CXTGV, MSNGW, MSTGW, MXTGW, CSTLS, CXTLS, MXTLS, CSTMM, CXTMM, CSTPC, CXTPC, MXTPM, MSNSN, MSTSN, MXTSN, CSNZJ, CSTZJ, CXNZJ, CXTZJ vulnerabilities

Recent Untrusted Search Path vulnerabilities

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