Vulnerability-Lookup

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

Vulnerability from cvelistv5 – Published: 2026-08-03 09:56 – Updated: 2026-08-03 10:41

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 (v2.0.3)

CWE

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

Assigner

ENISA

References

2 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

Impacted products

1 product

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

Credits

Nils Putniņš, OffSeq (SIA SEQ)

Show details on NVD website

JSON

To clipboard

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GHSA-GW22-GF8M-29G5

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

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": "2026-08-03T12:32:36Z",
  "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://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.

Detection rules are retrieved from Rulezet.

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.

Action not permitted

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

GHSA-GW22-GF8M-29G5

Tags

Sightings

Nomenclature