Vulnerability-Lookup

FKIE_CVE-2025-10539

Vulnerability from fkie_nvd - Published: 2026-04-28 09:16 - Updated: 2026-04-28 20:23

Severity ?

4.8 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Summary

Due to improper TLS certificate validation in the DeskTime Time Tracking App before version 1.3.674, attackers who can position themselves in the network path between the client and the DeskTime update servers can return a malicious executable in response to an update request. This allows the attacker to achieve user-level remote code execution on the affected client.

References

	URL	Tags
	551230f0-3615-47bd-b7cc-93e92e730bbf	https://desktime.com/download
	551230f0-3615-47bd-b7cc-93e92e730bbf	https://r.sec-consult.com/desktime
	134c704f-9b21-4f2e-91b3-4a467353bcc0	https://sec-consult.com/vulnerability-lab/advisory/missing-tls-certificate-validation-leading-to-rce-in-desktime-time-tracking-app/

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Due to improper TLS certificate validation in the DeskTime Time Tracking App before version 1.3.674, attackers who can position themselves in the network path between the client and the DeskTime update servers can return a malicious executable in response to an update request. This allows the attacker to achieve user-level remote code execution on the affected client."
    }
  ],
  "id": "CVE-2025-10539",
  "lastModified": "2026-04-28T20:23:20.703",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.8,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 2.5,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-04-28T09:16:16.187",
  "references": [
    {
      "source": "551230f0-3615-47bd-b7cc-93e92e730bbf",
      "url": "https://desktime.com/download"
    },
    {
      "source": "551230f0-3615-47bd-b7cc-93e92e730bbf",
      "url": "https://r.sec-consult.com/desktime"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://sec-consult.com/vulnerability-lab/advisory/missing-tls-certificate-validation-leading-to-rce-in-desktime-time-tracking-app/"
    }
  ],
  "sourceIdentifier": "551230f0-3615-47bd-b7cc-93e92e730bbf",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-295"
        },
        {
          "lang": "en",
          "value": "CWE-296"
        },
        {
          "lang": "en",
          "value": "CWE-494"
        }
      ],
      "source": "551230f0-3615-47bd-b7cc-93e92e730bbf",
      "type": "Secondary"
    }
  ]
}

CVE-2025-10539 (GCVE-0-2025-10539)

Vulnerability from cvelistv5 – Published: 2026-04-28 07:52 – Updated: 2026-04-28 14:10

Title

Improper TLS Certificate Validation RCE via Malicious Update in DeskTime Time Tracking App

Summary

Severity ?

4.8 (Medium)


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

CWE

CWE-295 - Improper certificate validation
CWE-296 - Improper following of a certificate's chain of trust
CWE-494 - Download of code without integrity check

Assigner

SEC-VLab

References

URL

Tags

	https://r.sec-consult.com/desktime	third-party-advisory
	https://desktime.com/download	patch

Impacted products

	Vendor	Product	Version
	DeskTime	DeskTime Time Tracking App	Affected: 0 , < 1.3.674 (semver)

Credits

Daniel Hirschberger, SEC Consult Vulnerability Lab Thorger Jansen, SEC Consult Vulnerability Lab Tobias Niemann, SEC Consult Vulnerability Lab Marius Renner, SEC Consult Vulnerability Lab

Show details on NVD website

JSON

To clipboard

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  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 4.8,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "LOW",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2025-10539",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-28T14:09:20.701327Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-28T14:10:50.831Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://sec-consult.com/vulnerability-lab/advisory/missing-tls-certificate-validation-leading-to-rce-in-desktime-time-tracking-app/"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "DeskTime Time Tracking App",
          "vendor": "DeskTime",
          "versions": [
            {
              "lessThan": "1.3.674",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Daniel Hirschberger, SEC Consult Vulnerability Lab"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Thorger Jansen, SEC Consult Vulnerability Lab"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Tobias Niemann, SEC Consult Vulnerability Lab"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Marius Renner, SEC Consult Vulnerability Lab"
        }
      ],
      "descriptions": [
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          "lang": "en",
          "supportingMedia": [
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              "type": "text/html",
              "value": "\u003cp\u003e\u003cspan\u003eDue to improper TLS certificate validation in the DeskTime Time Tracking App before version 1.3.674, attackers who can position themselves in the network path between the client and the DeskTime update servers can return a malicious executable in response to an update request. This allows the attacker to achieve user-level remote code execution on the affected client.\u003c/span\u003e\u003c/p\u003e"
            }
          ],
          "value": "Due to improper TLS certificate validation in the DeskTime Time Tracking App before version 1.3.674, attackers who can position themselves in the network path between the client and the DeskTime update servers can return a malicious executable in response to an update request. This allows the attacker to achieve user-level remote code execution on the affected client."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-187",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-187 Malicious Automated Software Update via Redirection"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-295",
              "description": "CWE-295 Improper certificate validation",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-296",
              "description": "CWE-296 Improper following of a certificate\u0027s chain of trust",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-494",
              "description": "CWE-494 Download of code without integrity check",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-28T07:52:23.279Z",
        "orgId": "551230f0-3615-47bd-b7cc-93e92e730bbf",
        "shortName": "SEC-VLab"
      },
      "references": [
        {
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://r.sec-consult.com/desktime"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://desktime.com/download"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "The vendor provides a patched version v1.3.674 which can be obtained from: https://desktime.com/download\u003cbr\u003e\u003cbr\u003e"
            }
          ],
          "value": "The vendor provides a patched version v1.3.674 which can be obtained from: https://desktime.com/download"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Improper TLS Certificate Validation RCE via Malicious Update in DeskTime Time Tracking App",
      "x_generator": {
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  "cveMetadata": {
    "assignerOrgId": "551230f0-3615-47bd-b7cc-93e92e730bbf",
    "assignerShortName": "SEC-VLab",
    "cveId": "CVE-2025-10539",
    "datePublished": "2026-04-28T07:52:23.279Z",
    "dateReserved": "2025-09-16T07:39:47.680Z",
    "dateUpdated": "2026-04-28T14:10:50.831Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Action not permitted

FKIE_CVE-2025-10539

CVE-2025-10539 (GCVE-0-2025-10539)

Tags

Sightings

Nomenclature