Lexmark MXTCT Postscript Interpreter heap-based overflow

Summaryinfo

A vulnerability classified as critical has been found in Lexmark 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, CSTAT, CXTAT, MSLBD, MXLBD, CSLBL, CXLBL, CSLBN, CXLBN, CSTMH, CXTMH, CSTPP, CXTPP, MSLSG and MXLSG. This affects an unknown part of the component Postscript Interpreter. This manipulation causes heap-based overflow. This vulnerability appears as CVE-2025-65079. The attack may be initiated remotely. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Lexmark 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, CSTAT, CXTAT, MSLBD, MXLBD, CSLBL, CXLBL, CSLBN, CXLBN, CSTMH, CXTMH, CSTPP, CXTPP, MSLSG and MXLSG. It has been declared as critical. Affected by this vulnerability is some unknown processing of the component Postscript Interpreter. The manipulation with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A heap-based buffer overflow vulnerability has been identified in the Postscript interpreter in various Lexmark devices. This vulnerability can be leveraged by an attacker to execute arbitrary code as an unprivileged user.

It is possible to read the advisory at lexmark.com. This vulnerability is known as CVE-2025-65079 since 11/17/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

Upgrading eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Printing Software

Vendor

• Lexmark

Name

• CSLBL
• CSLBN
• CSNGV
• CSNZJ
• CSTAT
• CSTGV
• CSTLS
• CSTMH
• CSTMM
• CSTPC
• CSTPP
• CSTZJ
• CXLBL
• CXLBN
• CXNZJ
• CXTAT
• CXTGV
• CXTLS
• CXTMH
• CXTMM
• CXTPC
• CXTPP
• CXTZJ
• MSLBD
• MSLSG
• MSNGM
• MSNGW
• MSNSN
• MSTGM
• MSTGW
• MSTSN
• MXLBD
• MXLSG
• MXNGM
• MXTCT
• MXTGM
• MXTGW
• MXTLS
• MXTPM
• MXTSN

License

• commercial

CPE 2.3info

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CPE 2.2info

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CVSSv2info

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Entryinfo

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