Vulnerability-Lookup

CVE-2026-0392 (GCVE-0-2026-0392)

Vulnerability from cvelistv5 – Published: 2026-08-03 09:56 – Updated: 2026-08-05 09:29

Title

eParakstītājs 3.0 for Windows – remote code execution via unauthenticated auto-update

Summary

eParakstītājs 3.0 for Windows before version 1.10.0 retrieves and executes its automatic updates over a channel that is not authenticated or integrity-protected. On each launch the application fetches an update descriptor (XML) over TLS but accepts any TLS certificate (a permissive TrustManager and a HostnameVerifier that always returns true), does not verify any digital signature on the update descriptor, and does not verify the Authenticode signature or a checksum of the downloaded installer before running it. A man-in-the-middle attacker able to redirect www.eparaksts.lv can serve a crafted update descriptor pointing to an attacker-controlled executable, which the client downloads and executes, resulting in arbitrary code execution on the victim host.

Severity

7.3 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-03 10:35 UTC

CWE

CWE-494 - Download of code without integrity check
CWE-295 - Improper certificate validation
CWE-347 - Improper verification of cryptographic signature

Assigner

ENISA CNA under the ENISA root

CNA scorecard B 80/100 over 53 records in the last 180 days details

References

3 references

URL	Tags
https://www.eparaksts.lv/lv/par_mums/Jaunumi/Jaun…	vendor-advisoryrelease-notes
https://cvd.cert.lv/inbox/view/vuln-all-1689187061	government-resourcethird-party-advisorypermissions-required
https://offseq.com/en/research/eparakstitajs-cve-…	technical-descriptionthird-party-advisory

Impacted products

1 product

Vendor	Product	Version	CPE status
Latvijas Valsts radio un televīzijas centrs (LVRTC)	eParakstītājs 3.0	Affected: 0 , < 1.10.0 (semver)	guessed

Credits

Nils Putniņš, OffSeq (SIA SEQ)

Show details on NVD website

JSON

To clipboard

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                  "value": "\u003cspan\u003eUntil updated, disable\nautomatic updates and install new versions only from the official signed\npackage obtained over a trusted network, verifying the Authenticode signature\nmanually.\u003c/span\u003e"
                }
              ],
              "value": "Until updated, disable\nautomatic updates and install new versions only from the official signed\npackage obtained over a trusted network, verifying the Authenticode signature\nmanually."
            }
          ],
          "x_generator": {
            "engine": "Vulnogram 1.0.4"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158",
        "assignerShortName": "ENISA",
        "cveId": "CVE-2026-0392",
        "datePublished": "2026-08-03T09:56:31.363Z",
        "dateReserved": "2025-11-27T11:36:47.937Z",
        "dateUpdated": "2026-08-05T09:29:36.104Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

FKIE_CVE-2026-0392

Vulnerability from fkie_nvd - Published: 2026-08-03 10:16 - Updated: 2026-10-23 22:10

Severity

7.3 (High) - CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Summary

References

	URL	Tags
	a6d3dc9e-0591-4a13-bce7-0f5b31ff6158	https://cvd.cert.lv/inbox/view/vuln-all-1689187061
	a6d3dc9e-0591-4a13-bce7-0f5b31ff6158	https://offseq.com/en/research/eparakstitajs-cve-2026-0392/
	a6d3dc9e-0591-4a13-bce7-0f5b31ff6158	https://www.eparaksts.lv/lv/par_mums/Jaunumi/Jauna_eParakstitajs_30_versija_1100

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "Windows"
          ],
          "product": "eParakst\u012bt\u0101js 3.0",
          "vendor": "Latvijas Valsts radio un telev\u012bzijas centrs (LVRTC)",
          "versions": [
            {
              "lessThan": "1.10.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "eParakst\u012bt\u0101js 3.0 for Windows before version\n1.10.0 retrieves and executes its automatic updates over a channel that is not\nauthenticated or integrity-protected. On each launch the application fetches an\nupdate descriptor (XML) over TLS but accepts any TLS certificate (a permissive\nTrustManager and a HostnameVerifier that always returns true), does not verify\nany digital signature on the update descriptor, and does not verify the\nAuthenticode signature or a checksum of the downloaded installer before running\nit. A man-in-the-middle attacker able to redirect www.eparaksts.lv can serve a\ncrafted update descriptor pointing to an attacker-controlled executable, which\nthe client downloads and executes, resulting in arbitrary code execution on the\nvictim host."
    },
    {
      "lang": "es",
      "value": "eParakst?t?js 3.0 para Windows anterior a la versi\u00f3n 1.10.0 recupera y ejecuta sus actualizaciones autom\u00e1ticas a trav\u00e9s de un canal que no est\u00e1 autenticado ni protegido en cuanto a integridad. En cada inicio, la aplicaci\u00f3n obtiene un descriptor de actualizaci\u00f3n (XML) a trav\u00e9s de TLS, pero acepta cualquier certificado TLS (un TrustManager permisivo y un HostnameVerifier que siempre devuelve verdadero), no verifica ninguna firma digital en el descriptor de actualizaci\u00f3n y no verifica la firma Authenticode ni una suma de comprobaci\u00f3n del instalador descargado antes de ejecutarlo. Un atacante man-in-the-middle capaz de redirigir www.eparaksts.lv puede servir un descriptor de actualizaci\u00f3n manipulado que apunta a un ejecutable controlado por el atacante, que el cliente descarga y ejecuta, lo que resulta en ejecuci\u00f3n de c\u00f3digo arbitrario en el host v\u00edctima."
    }
  ],
  "id": "CVE-2026-0392",
  "lastModified": "2026-10-23T22:10:00.160",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "PRESENT",
          "attackVector": "ADJACENT",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 7.3,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "ACTIVE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:A/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",
          "version": "4.0",
          "vulnAvailabilityImpact": "HIGH",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-0392",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-03T10:35:21.949793Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-03T10:16:27.747",
  "references": [
    {
      "source": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158",
      "url": "https://cvd.cert.lv/inbox/view/vuln-all-1689187061"
    },
    {
      "source": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158",
      "url": "https://offseq.com/en/research/eparakstitajs-cve-2026-0392/"
    },
    {
      "source": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158",
      "url": "https://www.eparaksts.lv/lv/par_mums/Jaunumi/Jauna_eParakstitajs_30_versija_1100"
    }
  ],
  "sourceIdentifier": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-295"
        },
        {
          "lang": "en",
          "value": "CWE-347"
        },
        {
          "lang": "en",
          "value": "CWE-494"
        }
      ],
      "source": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158",
      "type": "Secondary"
    }
  ]
}

GHSA-GW22-GF8M-29G5

Vulnerability from github – Published: 2026-08-03 12:32 – Updated: 2026-08-05 12:31

Details

Severity

7.3 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-0392"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-295"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-03T10:16:27Z",
    "severity": "HIGH"
  },
  "details": "eParakst\u012bt\u0101js 3.0 for Windows before version\n1.10.0 retrieves and executes its automatic updates over a channel that is not\nauthenticated or integrity-protected. On each launch the application fetches an\nupdate descriptor (XML) over TLS but accepts any TLS certificate (a permissive\nTrustManager and a HostnameVerifier that always returns true), does not verify\nany digital signature on the update descriptor, and does not verify the\nAuthenticode signature or a checksum of the downloaded installer before running\nit. A man-in-the-middle attacker able to redirect www.eparaksts.lv can serve a\ncrafted update descriptor pointing to an attacker-controlled executable, which\nthe client downloads and executes, resulting in arbitrary code execution on the\nvictim host.",
  "id": "GHSA-gw22-gf8m-29g5",
  "modified": "2026-08-05T12:31:29Z",
  "published": "2026-08-03T12:32:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-0392"
    },
    {
      "type": "WEB",
      "url": "https://cvd.cert.lv/inbox/view/vuln-all-1689187061"
    },
    {
      "type": "WEB",
      "url": "https://offseq.com/en/research/eparakstitajs-cve-2026-0392"
    },
    {
      "type": "WEB",
      "url": "https://www.eparaksts.lv/lv/par_mums/Jaunumi/Jauna_eParakstitajs_30_versija_1100"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:A/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",
      "type": "CVSS_V4"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-0392 (GCVE-0-2026-0392)

FKIE_CVE-2026-0392

GHSA-GW22-GF8M-29G5

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour