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    4 vulnerabilities by willamowius

    CVE-2026-121626 (GCVE-0-2026-121626)

    Vulnerability from nvd – Published: 2026-11-03 17:13 – Updated: 2026-11-03 17:13
    VLAI
    Title
    GNU Gatekeeper before 5.16 Out-of-Bounds Read in H.460.24 RTCP Probe Handler
    Summary
    GNU Gatekeeper (gnugk) before 5.16 contains an out-of-bounds read vulnerability in H46024Socket::ReceivedProbePacket() that allows remote attackers to cause a heap over-read by sending short probe packets. Attackers can send a short application-defined RTCP packet to the media port during H.460.24 probing to read past the heap allocation and possibly crash the gatekeeper.
    Severity
    6.3 (Medium)
    CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
    3.7 (Low)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
    CWE
    Assigner
    VulnCheck CNA under the mitre root
    CNA scorecard B 84/100 over 7380 records in the last 180 days details
    References
    Impacted products
    Vendor Product Version
    willamowius gnugk Affected: 0 , < 5.16 (custom)
    		Create a notification for this product.
    Date Public
    2026-08-25 00:00
    Credits
    Tristan Madani (Talence Security) Jan Willamowius
    Show details on NVD website
    To clipboard 

    {
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        {
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      ],
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        }
      ],
      "metrics": [
        {
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            "attackComplexity": "HIGH",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
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        },
        {
          "name": "gnugk v5_16 Release Notes",
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          ],
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    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-121626",
    "datePublished": "2026-11-03T17:13:53.309Z",
    "dateReserved": "2026-11-03T16:57:44.441Z",
    "dateUpdated": "2026-11-03T17:13:53.309Z",
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}

    CVE-2026-121625 (GCVE-0-2026-121625)

    Vulnerability from nvd – Published: 2026-11-03 17:13 – Updated: 2026-11-03 17:24
    VLAI
    Title
    GNU Gatekeeper before 5.16 Out-of-Bounds Read via RTCP SDES Parsing
    Summary
    GNU Gatekeeper (gnugk) before 5.16 contains an out-of-bounds read vulnerability in ParseRTCP() in ProxyChannel.cxx that allows remote RTP peers to read heap memory past received packets. Attackers can send RTCP SDES items lacking a NUL byte to the media proxy port during proxied H.323 calls with EnableRTCPStats enabled, crashing the gatekeeper.
    Severity
    6.3 (Medium)
    CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
    3.7 (Low)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-11-03 17:24 UTC
    CWE
    Assigner
    VulnCheck CNA under the mitre root
    CNA scorecard B 84/100 over 7380 records in the last 180 days details
    References
    Impacted products
    Vendor Product Version
    willamowius gnugk Affected: 0 , < 5.16 (custom)
    		Create a notification for this product.
    Date Public
    2026-08-25 00:00
    Credits
    Tristan Madani (Talence Security) Jan Willamowius
    Show details on NVD website
    To clipboard 

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                "timestamp": "2026-11-03T17:24:07.685551Z",
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          "name": "gnugk v5_16 Release Notes",
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    CVE-2026-121626 (GCVE-0-2026-121626)

    Vulnerability from cvelistv5 – Published: 2026-11-03 17:13 – Updated: 2026-11-03 17:13
    VLAI
    Title
    GNU Gatekeeper before 5.16 Out-of-Bounds Read in H.460.24 RTCP Probe Handler
    Summary
    GNU Gatekeeper (gnugk) before 5.16 contains an out-of-bounds read vulnerability in H46024Socket::ReceivedProbePacket() that allows remote attackers to cause a heap over-read by sending short probe packets. Attackers can send a short application-defined RTCP packet to the media port during H.460.24 probing to read past the heap allocation and possibly crash the gatekeeper.
    Severity
    6.3 (Medium)
    CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
    3.7 (Low)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
    CWE
    Assigner
    VulnCheck CNA under the mitre root
    CNA scorecard B 84/100 over 7380 records in the last 180 days details
    References
    Impacted products
    Vendor Product Version
    willamowius gnugk Affected: 0 , < 5.16 (custom)
    		Create a notification for this product.
    Date Public
    2026-08-25 00:00
    Credits
    Tristan Madani (Talence Security) Jan Willamowius
    Show details on NVD website
    To clipboard 

    {
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        {
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    CVE-2026-121625 (GCVE-0-2026-121625)

    Vulnerability from cvelistv5 – Published: 2026-11-03 17:13 – Updated: 2026-11-03 17:24
    VLAI
    Title
    GNU Gatekeeper before 5.16 Out-of-Bounds Read via RTCP SDES Parsing
    Summary
    GNU Gatekeeper (gnugk) before 5.16 contains an out-of-bounds read vulnerability in ParseRTCP() in ProxyChannel.cxx that allows remote RTP peers to read heap memory past received packets. Attackers can send RTCP SDES items lacking a NUL byte to the media proxy port during proxied H.323 calls with EnableRTCPStats enabled, crashing the gatekeeper.
    Severity
    6.3 (Medium)
    CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
    3.7 (Low)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-11-03 17:24 UTC
    CWE
    Assigner
    VulnCheck CNA under the mitre root
    CNA scorecard B 84/100 over 7380 records in the last 180 days details
    References
    Impacted products
    Vendor Product Version
    willamowius gnugk Affected: 0 , < 5.16 (custom)
    		Create a notification for this product.
    Date Public
    2026-08-25 00:00
    Credits
    Tristan Madani (Talence Security) Jan Willamowius
    Show details on NVD website
    To clipboard 

    {
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                "id": "CVE-2026-121625",
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    "dateReserved": "2026-11-03T16:57:44.037Z",
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