Medium Access control

CVE-2026-40552 — Remote Code Execution in multiple BinSoft products

Multiple BinSoft products are vulnerable to Remote Command Execution. An authorized user with access to the application and direct access to the backend database can achieve system command execution by uploading an attachment and modifying its storage path in the database to reference an attacker-controlled remote network resource. Alternatively, it is possible to use a previously uploaded file and change its reference. When the application processes the attachment, and a user tries to open it, the referenced resource is executed by the system. Critically, this vulnerability can be exploited by any unauthenticated attacker by chaining it with CVE-2026-40550 and CVE-2026-40551, which allows obtaining database access, and logging onto any account. The described issue affects all published versions. The vendor stated that this issue is a direct result of the architecture model in which the software is distributed, and that it will be mitigated with a corrected installation manual.

Published Apr 28, 2026 · Updated Oct 13, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP · CNA: CERT-PL

Low

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.

How the score was calculated

EPSS 0.5% (30-day exploitation probability)+6
Technical severity (medium)+3

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation

Not confirmed

Not in CISA KEV — an absence of record, not proof it is unexploited.

EPSS FIRST

0.47%

ahead of 39% of scored CVEs · Oct 14, 2026

Affects

BinSoft

mpCRM and 7 more

CVSS base

4.7

Medium · 2 source(s)

CISA SSVC assessment CISA

Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.

Exploitation

None

none · proof-of-concept · active

Automatable

can an attacker script the kill-chain steps

Technical impact

Partial

partial · total control of the vulnerable component

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

Identify exposed assets running the affected vendor/product/version combinations (BinSoft mpCRM, BinSoft mpFaktura, BinSoft mpFirma…).
No fix documented in the sources: reduce exposure and monitor the vendor advisory.
Exploitation requires user interaction: tighten email/web filtering and warn affected users.
Search available logs for exploit probes matching the vulnerability class (access control), errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Vendor	Product	Versions	Status	Source
BinSoft	mpCRM	≤ 25.2.4	Vulnerable	CVE Program (cve.org) e CISA ADP
BinSoft	mpFaktura	≤ 26.4.9	Vulnerable	CVE Program (cve.org) e CISA ADP
BinSoft	mpFirma	≤ 26.4.9	Vulnerable	CVE Program (cve.org) e CISA ADP
BinSoft	mpFirma ERP	≤ 26.4.9	Vulnerable	CVE Program (cve.org) e CISA ADP
BinSoft	mpGabinet	≤ 23.12.19	Vulnerable	CVE Program (cve.org) e CISA ADP
BinSoft	mpPOS	≤ 25.2.4	Vulnerable	CVE Program (cve.org) e CISA ADP
BinSoft	mpSekretariat	≤ 25.2.4	Vulnerable	CVE Program (cve.org) e CISA ADP
BinSoft	mpWarsztat	≤ 20.4.28	Vulnerable	CVE Program (cve.org) e CISA ADP

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Attack vector

Adjacent

Attack complexity

Low

Attack requirements

None

Privileges required

High

User interaction

Passive

Scope

Confidentiality (vulnerable system)

Low

Integrity (vulnerable system)

Low

Availability (vulnerable system)

Low

Confidentiality (subsequent)

High

Integrity (subsequent)

High

Availability (subsequent)

High

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

Score	Version	Severity	Expl.	Impact	Scored by
4.7	CVSS 4.0	Medium	—	—	cvd@cert.pl via NIST National Vulnerability Database
4.7	CVSS 4.0	Medium	—	—	CERT-PL via CVE Program (cve.org) e CISA ADP

CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:L/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

(score shown at the top: cvd@cert.pl)

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-669 · Incorrect Resource Transfer Between Spheres

Other CVEs with this weakness →

EPSS over time FIRST

Oct 13, 2026 → Oct 14, 2026 · 2 reading(s) · max 0.47%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

Audit administrative actions and access to resources outside each user’s normal pattern.

authentication logsapplication logs

Timeline

What happened to this CVE, newest first.

2026
Affected products added · binsoft/mpgabinet, binsoft/mpfirma, binsoft/mpfaktura, binsoft/mpfirma erp, binsoft/mpsekretariat, binsoft/mppos, binsof
Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
SSVC assessment updated
Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
Record published
Oct 13, 2026
CVSS changed · 4.7
Oct 13, 2026 · NIST National Vulnerability Database
Source status changed · → Deferred
Oct 13, 2026 · NIST National Vulnerability Database
Record created in this database
Oct 13, 2026 · NIST National Vulnerability Database
CVE published
Apr 28, 2026 · CERT-PL

Source activity

Repeated readings are counted rather than listed.

1× Official description updated · Oct 13, 2026 – Oct 13, 2026

References

2 on the record

cert.pl/posts/2026/04/CVE-2026-40550/
third-party-advisory, NIST National Vulnerability Database
www.binsoft.pl/produkty
product, NIST National Vulnerability Database

Elsewhere on this site

BinSoft
every CVE for this vendor

Access control
same class

CWE-669
other pages naming this weakness

Related CVEs (same products)

Medium CVE-2026-40550 Privilege Escalation in multiple BinSoft products Apr 28, 2026
High CVE-2026-40551 Use of Client-Side Authentication in multiple BinSoft products Apr 28, 2026

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No fixed version, patch or mitigation documented.
No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2026-40552 is "Remote Code Execution in multiple BinSoft products", rated Medium. It affects mpCRM (BinSoft); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 4.7 describes technical severity. EPSS 0.47% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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