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CVE Record

CVE-2026-3843: SQL Injection in Nefteprodukttekhnika BUK TS-G Allows Remote Code Execution

Nefteprodukttekhnika BUK TS-G Gas Station Automation System 2.9.1 on Linux contains a SQL Injection vulnerability (CWE-89) in the system configuration module. A remote attacker can send specially crafted HTTP POST requests to the /php/request.php endpoint via the sql parameter in application/x-www-form-urlencoded data (e.g., action=do&sql=<query_here>&reload_driver=0) to execute arbitrary SQL commands and potentially achieve remote code execution.

CriticalCVSS 9.8Not KEV-listedUpdated
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Glexia's TakeAutomated analysiscritical

Security readout for executives and security teams

Plain-English summary

A flaw in BUK TS-G could let an unauthenticated remote attacker manipulate its database through a web request. Successful abuse may expose or alter operational data, disrupt availability, and potentially lead to code execution on the underlying Linux system.

Executive priority

Treat reachable installations as an immediate remediation priority because successful exploitation could compromise station automation data and system availability. Prioritize containment now, establish precise version exposure, and obtain vendor remediation guidance. Escalate to incident response if suspicious requests or host changes are found.

Technical view

CVE-2026-3843 is a CWE-89 SQL injection in the system configuration module. The vulnerable /php/request.php endpoint accepts SQL through the sql parameter in form-encoded POST data. CVSS 3.1 rates it 9.8: network-accessible, low complexity, no privileges or user interaction, with high confidentiality, integrity, and availability impact.

Likely exposure

Deployments are at risk where the affected web endpoint is reachable from untrusted networks. The bundle lists versions 2.9.1 and 2.10.2, although its detailed description explicitly names only 2.9.1. Actual deployment prevalence and internet exposure are not provided.

Exploitation context

No active exploitation is established: the CVE is not listed as KEV in the supplied bundle, and no cited evidence confirms exploitation in the wild. Nevertheless, the unauthenticated network attack path and potential code execution make reachable systems urgent to assess.

Researcher notes

The supplied record supports SQL injection and possible escalation to remote code execution, but does not establish the database mechanism enabling code execution. Version evidence is inconsistent: the affected list includes 2.9.1 and 2.10.2, while the description names 2.9.1. No patch, workaround, proof of exploitation, or confirmed attack campaign is supplied.

Mitigation direction

  • Restrict the product interface to trusted management networks and authorized hosts.
  • Block untrusted access to /php/request.php using firewall, proxy, or access-control rules.
  • Check current vendor guidance for patched versions or supported mitigations.
  • Preserve relevant web, application, database, and system logs before remediation.
  • If compromise is suspected, isolate the system and begin incident-response procedures.

Validation and detection

  • Inventory BUK TS-G installations and record their exact versions and network locations.
  • Determine whether /php/request.php is reachable from untrusted or internet-connected networks.
  • Review logs for unusual POST requests to /php/request.php and unexpected database activity.
  • Check for unauthorized database changes, new files, processes, accounts, or persistence.
  • Confirm vendor guidance before declaring versions 2.9.1 or 2.10.2 remediated.
Prepared
Confidence
medium
Sources
4

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-89: Database access and collection lookup

Injection into data stores can inform collection, data access, and exfiltration detection reviews. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
description · low confidence lookup

Database behavior lookup

The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-3843 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Critical
CVSS
9.8 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

2CVSS vectors
3Timeline events
1ADP providers
3Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: yesTechnical Impact: total

CVSS vector scores

2 official scores

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
9.8CVSS 3.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9TuranSec
9.3CVSS 4.0CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L——TuranSec

Vulnerability scoring details

Base CVSS 4.0 score

9.3Critical
CVSS 4.0 vector shape for CVE-2026-3843Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Attack Requirements
NonePresent
Privileges Required
NoneLowHigh
User Interaction
NonePassiveActive
VS Confidentiality
HighLowNone
VS Integrity
HighLowNone
VS Availability
HighLowNone
SS Confidentiality
HighLowNone
SS Integrity
HighLowNone
SS Availability
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Nefteprodukttekhnika LLCBUK TS-G Gas Station Automation System2.9.1, 2.10.2unaffected
Weakness

CWE details

CWE-89

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.