GCVE-1988-2026-0063

Vulnerability from gna-1988 – Published: 2026-09-07 13:20 – Updated: 2026-09-07 13:20
VLAI
Title
[KIS-2026-16] Telenia Software TVox <= 26.5.3 (nice) Local Privilege Escalation Vulnerability
Summary
------------------------------------------------------------------------------- Telenia Software TVox <= 26.5.3 (nice) Local Privilege Escalation Vulnerability ------------------------------------------------------------------------------- [-] Software Link: https://www.teleniasoftware.com [-] Affected Versions: Version 26.5.3 and prior 26.x versions. Version 24.9.21 and prior 24.x versions. Older versions may be affected as well. [-] Vulnerability Description: The vulnerability is caused by an insecure sudoers configuration in the /etc/sudoers.d/telenia file: apache ALL=NOPASSWD: /opt/telenia/cloud/bin/check-instance-id apache ALL=NOPASSWD: /usr/sbin/postsuper apache ALL=NOPASSWD: /bin/nice apache ALL=NOPASSWD: /usr/bin/hostnamectl apache ALL=NOPASSWD: /sbin/halt apache ALL=NOPASSWD: /sbin/reboot The apache user is allowed to execute the "nice" command with root privileges without requiring a password. Since "nice" can be abused to invoke arbitrary commands, this misconfiguration enables an attacker with access to the apache account to execute arbitrary commands as the root user, resulting in a Local Privilege Escalation. [-] Proof of Concept: https://karmainsecurity.com/pocs/tvox_root_rce.php [-] Solution: No official solution is currently available. [-] Disclosure Timeline: [22/05/2026] - Vendor was contacted, no response [27/05/2026] - Vendor was notified about this vulnerability, no response [27/05/2026] - Vendor was notified about 60-day disclosure deadline policy, no response [26/06/2026] - Vendor was contacted again along with CSIRT Italy, no response from CSIRT [08/07/2026] - First vendor response, asking for vulnerability details [09/07/2026] - Vulnerability details safely provided to the vendor [20/07/2026] - Vendor was contacted again, asking for an update [21/07/2026] - Vendor replied a security patch will be released by the end of July [21/07/2026] - CVE identifier requested [21/07/2026] - CVE identifier assigned [27/07/2026] - Reached 60-day disclosure deadline, still no official solution [03/08/2026] - Public disclosure [-] CVE Reference: CVE-2026-64829 has been assigned to this vulnerability. [-] Credits: Vulnerability discovered by Egidio Romano. [-] Original Advisory: https://karmainsecurity.com/KIS-2026-16 _______________________________________________ Sent through the Full Disclosure mailing list https://nmap.org/mailman/listinfo/fulldisclosure Web Archives & RSS: https://seclists.org/fulldisclosure/
Severity
No CVSS data available.
Assigner
VULNARCHIVE GNA GNA-1988
GNA scorecard E 38/100 over 445 records in the last 180 days details
Impacted products
Vendor Product Version CPE status
unknown Telenia Software TVox Affected: unknown
guessed Create a notification for this product.

{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "Telenia Software TVox",
          "vendor": "unknown",
          "versions": [
            {
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              "version": "unknown"
            }
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      "credits": [
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          "lang": "en",
          "type": "finder",
          "value": "Egidio Romano"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "-------------------------------------------------------------------------------\nTelenia Software TVox \u003c= 26.5.3 (nice) Local Privilege Escalation\nVulnerability\n-------------------------------------------------------------------------------\n\n\n[-] Software Link:\n\nhttps://www.teleniasoftware.com\n\n\n[-] Affected Versions:\n\nVersion 26.5.3 and prior 26.x versions.\nVersion 24.9.21 and prior 24.x versions.\nOlder versions may be affected as well.\n\n\n[-] Vulnerability Description:\n\nThe vulnerability is caused by an insecure sudoers configuration in the\n/etc/sudoers.d/telenia file:\n\n\napache ALL=NOPASSWD: /opt/telenia/cloud/bin/check-instance-id\n\napache ALL=NOPASSWD: /usr/sbin/postsuper\n\napache ALL=NOPASSWD: /bin/nice\napache ALL=NOPASSWD: /usr/bin/hostnamectl\napache ALL=NOPASSWD: /sbin/halt\napache ALL=NOPASSWD: /sbin/reboot\n\n\nThe apache user is allowed to execute the \"nice\" command with root\nprivileges without requiring a password. Since \"nice\" can be abused to\ninvoke arbitrary commands, this misconfiguration enables an attacker with\naccess to the apache account to execute arbitrary commands as the root\nuser, resulting in a Local Privilege Escalation.\n\n\n[-] Proof of Concept:\n\nhttps://karmainsecurity.com/pocs/tvox_root_rce.php\n\n\n[-] Solution:\n\nNo official solution is currently available.\n\n\n[-] Disclosure Timeline:\n\n[22/05/2026] - Vendor was contacted, no response\n[27/05/2026] - Vendor was notified about this vulnerability, no response\n[27/05/2026] - Vendor was notified about 60-day disclosure deadline policy,\nno response\n[26/06/2026] - Vendor was contacted again along with CSIRT Italy, no\nresponse from CSIRT\n[08/07/2026] - First vendor response, asking for vulnerability details\n[09/07/2026] - Vulnerability details safely provided to the vendor\n[20/07/2026] - Vendor was contacted again, asking for an update\n[21/07/2026] - Vendor replied a security patch will be released by the end\nof July\n[21/07/2026] - CVE identifier requested\n[21/07/2026] - CVE identifier assigned\n[27/07/2026] - Reached 60-day disclosure deadline, still no official\nsolution\n[03/08/2026] - Public disclosure\n\n\n[-] CVE Reference:\n\nCVE-2026-64829 has been assigned to this vulnerability.\n\n\n[-] Credits:\n\nVulnerability discovered by Egidio Romano.\n\n\n[-] Original Advisory:\n\nhttps://karmainsecurity.com/KIS-2026-16\n_______________________________________________\nSent through the Full Disclosure mailing list\nhttps://nmap.org/mailman/listinfo/fulldisclosure\nWeb Archives \u0026 RSS: https://seclists.org/fulldisclosure/"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-07T13:20:21Z",
        "orgId": "4e2abfbf-4a2a-4b76-a4e0-d77c18ba156c",
        "shortName": "VULNARCHIVE"
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        },
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          "tags": [
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          "url": "https://seclists.org/fulldisclosure/2026/Aug/32"
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        },
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          "url": "https://karmainsecurity.com/pocs/tvox_root_rce.php"
        },
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          "url": "https://nmap.org/mailman/listinfo/fulldisclosure"
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          "url": "https://seclists.org/fulldisclosure/"
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        {
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      "source": {
        "defect": [
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        ],
        "discovery": "EXTERNAL"
      },
      "title": "[KIS-2026-16] Telenia Software TVox \u003c= 26.5.3 (nice) Local Privilege Escalation Vulnerability",
      "x_gcve": [
        {
          "recordType": "advisory",
          "relationships": [],
          "vulnId": "GCVE-1988-2026-0063",
          "x_vulnarchive": {
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            "automated": true,
            "contentSha256": "6fe3bdfe6e52b71acd1d426aa72052689d91f1538bde6a1175e9fab3479a1984",
            "evidenceScore": 7,
            "messageId": "",
            "originalUrl": "https://seclists.org/fulldisclosure/2026/Aug/32",
            "policy": "vulnarchive-1",
            "sourceFormat": "text/html",
            "sourcePublishedAt": "2026-08-03T07:30:11Z"
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  "cveMetadata": {
    "assignerOrgId": "4e2abfbf-4a2a-4b76-a4e0-d77c18ba156c",
    "assignerShortName": "VULNARCHIVE",
    "datePublished": "2026-09-07T13:20:21Z",
    "dateUpdated": "2026-09-07T13:20:21Z",
    "state": "PUBLISHED",
    "vulnId": "GCVE-1988-2026-0063"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}



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