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    8 vulnerabilities found for ettercap by Ettercap

    CVE-2026-125406 (GCVE-0-2026-125406)

    Vulnerability from cvelistv5 – Published: 2026-11-09 23:28 – Updated: 2026-11-09 23:28
    VLAI
    Title
    Ettercap through 0.8.4.1 Stack Buffer Underwrite via Telnet Dissector Backspace Handling
    Summary
    Ettercap through 0.8.4.1 contains a stack buffer underwrite vulnerability in the telnet dissector in src/dissectors/ec_telnet.c that decrements the output pointer on backspace without a lower bound check. Attackers can send a telnet stream with more backspaces than preceding characters to write below the stack buffer, corrupting the stack of the Ettercap process that normally runs as root.
    Severity
    8.7 (High)
    CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
    8.8 (High)
    CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    CWE
    • CWE-124 - Buffer Underwrite ('Buffer Underflow')
    Assigner
    VulnCheck CNA
    References
    Impacted products
    Vendor Product Version
    Ettercap ettercap Affected: 0 , ≤ 0.8.4.1 (custom)
        cpe:2.3:a:ettercap-project:ettercap:*:*:*:*:*:*:*:*
    		Create a notification for this product.
    Date Public
    2026-11-06 00:00
    Credits
    Adiel Sol, Arad Inbar, Erez Cohen, Nir Somech, Ben Grinberg, Daniel Lubel, Shir Sadon (DREAM Security Research Team) Emilio Escobar
    Show details on NVD website
    To clipboard 

    {
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        },
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        {
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      ],
      "metrics": [
        {
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            "attackRequirements": "NONE",
            "attackVector": "ADJACENT",
            "baseScore": 8.7,
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    CVE-2026-125405 (GCVE-0-2026-125405)

    Vulnerability from cvelistv5 – Published: 2026-11-09 23:28 – Updated: 2026-11-09 23:28
    VLAI
    Title
    Ettercap through 0.8.4.1 Out-of-Bounds Read via HTTP NTLM Authentication Parsing
    Summary
    Ettercap through 0.8.4.1 contains an out-of-bounds read vulnerability in Parse_NTLM_Auth() in src/dissectors/ec_http.c due to unvalidated NTLM message offsets. Attackers can send a crafted HTTP Authorization header observed by Ettercap to read beyond the buffer, disclosing memory or crashing the process.
    Severity
    7.2 (High)
    CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N
    8.1 (High)
    CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
    CWE
    Assigner
    VulnCheck CNA
    References
    Impacted products
    Vendor Product Version
    Ettercap ettercap Affected: 0 , ≤ 0.8.4.1 (custom)
        cpe:2.3:a:ettercap-project:ettercap:*:*:*:*:*:*:*:*
    		Create a notification for this product.
    Date Public
    2026-11-06 00:00
    Credits
    Adiel Sol, Arad Inbar, Erez Cohen, Nir Somech, Ben Grinberg, Daniel Lubel, Shir Sadon (DREAM Security Research Team) Emilio Escobar
    Show details on NVD website
    To clipboard 

    {
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        {
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    CVE-2026-125404 (GCVE-0-2026-125404)

    Vulnerability from cvelistv5 – Published: 2026-11-09 23:28 – Updated: 2026-11-09 23:28
    VLAI
    Title
    Ettercap through 0.8.4.1 Stack Buffer Overflow via WPA CCMP Decryption
    Summary
    Ettercap through 0.8.4.1 contains an integer underflow in ccmp_decrypt() in src/ec_encryption_ccmp.c that subtracts the 8-byte CCMP trailer without checking minimum length. Attackers on a network whose WPA key is loaded can send a short crafted CCMP frame to overflow a stack buffer in the Ettercap process, which normally runs as root.
    Severity
    7.7 (High)
    CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
    7.5 (High)
    CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
    CWE
    • CWE-191 - Integer Underflow (Wrap or Wraparound)
    Assigner
    VulnCheck CNA
    References
    Impacted products
    Vendor Product Version
    Ettercap ettercap Affected: 0 , ≤ 0.8.4.1 (custom)
        cpe:2.3:a:ettercap-project:ettercap:*:*:*:*:*:*:*:*
    		Create a notification for this product.
    Date Public
    2026-11-06 00:00
    Credits
    Adiel Sol, Arad Inbar, Erez Cohen, Nir Somech, Ben Grinberg, Daniel Lubel, Shir Sadon (DREAM Security Research Team) Emilio Escobar
    Show details on NVD website
    To clipboard 

    {
  "containers": {
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      "affected": [
        {
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    CVE-2026-125403 (GCVE-0-2026-125403)

    Vulnerability from cvelistv5 – Published: 2026-11-09 23:28 – Updated: 2026-11-09 23:28
    VLAI
    Title
    Ettercap through 0.8.4.1 Out-of-Bounds Read via sslw_remove_sts
    Summary
    Ettercap through 0.8.4.1 contains an out-of-bounds read and size_t underflow vulnerability in sslw_remove_sts() in src/ec_sslwrap.c, caused by a stale length and an unchecked memmem() result when stripping Strict-Transport-Security headers. A malicious HTTPS server whose response passes through Ettercap's SSL interception can trigger out-of-bounds reads and memory corruption in the Ettercap process, which normally runs as root.
    Severity
    7.2 (High)
    CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
    8.1 (High)
    CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
    CWE
    Assigner
    VulnCheck CNA
    References
    Impacted products
    Vendor Product Version
    Ettercap ettercap Affected: 0 , ≤ 0.8.4.1 (custom)
        cpe:2.3:a:ettercap-project:ettercap:*:*:*:*:*:*:*:*
    		Create a notification for this product.
    Date Public
    2026-11-06 00:00
    Credits
    Adiel Sol, Arad Inbar, Erez Cohen, Nir Somech, Ben Grinberg, Daniel Lubel, Shir Sadon (DREAM Security Research Team) Emilio Escobar
    Show details on NVD website
    To clipboard 

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    CVE-2026-125402 (GCVE-0-2026-125402)

    Vulnerability from cvelistv5 – Published: 2026-11-09 23:28 – Updated: 2026-11-09 23:28
    VLAI
    Title
    Ettercap through 0.8.4.1 Heap Out-of-Bounds Read via TLS SNI Parsing
    Summary
    Ettercap through 0.8.4.1 contains a heap out-of-bounds read vulnerability in sslw_get_clienthello_sni() in src/ec_sslwrap.c that trusts the unchecked 16-bit SNI length field. Network-adjacent attackers can send crafted TLS ClientHello messages during SSL interception to leak up to 64 KB of heap memory upstream or crash Ettercap.
    Severity
    7.2 (High)
    CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N
    8.1 (High)
    CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
    CWE
    Assigner
    VulnCheck CNA
    References
    Impacted products
    Vendor Product Version
    Ettercap ettercap Affected: 0 , ≤ 0.8.4.1 (custom)
        cpe:2.3:a:ettercap-project:ettercap:*:*:*:*:*:*:*:*
    		Create a notification for this product.
    Date Public
    2026-11-06 00:00
    Credits
    Adiel Sol, Arad Inbar, Erez Cohen, Nir Somech, Ben Grinberg, Daniel Lubel, Shir Sadon (DREAM Security Research Team) Emilio Escobar
    Show details on NVD website
    To clipboard 

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    CVE-2026-125401 (GCVE-0-2026-125401)

    Vulnerability from cvelistv5 – Published: 2026-11-09 23:28 – Updated: 2026-11-09 23:28
    VLAI
    Title
    Ettercap through 0.8.4.1 Heap Buffer Overflow via Gadu-Gadu Dissector
    Summary
    Ettercap through 0.8.4.1 contains a heap buffer overflow vulnerability in gg_get_version() in src/dissectors/ec_gg.c that writes up to 44 bytes into a 30-byte allocation. Remote attackers can send Gadu-Gadu traffic on TCP port 8074 with a crafted version field through a monitored network to corrupt heap memory in the Ettercap process, which normally runs as root.
    Severity
    7.2 (High)
    CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
    8.1 (High)
    CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
    CWE
    • CWE-122 - Heap-based Buffer Overflow
    Assigner
    VulnCheck CNA
    References
    Impacted products
    Vendor Product Version
    Ettercap ettercap Affected: 0 , ≤ 0.8.4.1 (custom)
        cpe:2.3:a:ettercap-project:ettercap:*:*:*:*:*:*:*:*
    		Create a notification for this product.
    Date Public
    2026-11-06 00:00
    Credits
    Adiel Sol, Arad Inbar, Erez Cohen, Nir Somech, Ben Grinberg, Daniel Lubel, Shir Sadon (DREAM Security Research Team) Emilio Escobar
    Show details on NVD website
    To clipboard 

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    CVE-2026-125400 (GCVE-0-2026-125400)

    Vulnerability from cvelistv5 – Published: 2026-11-09 23:28 – Updated: 2026-11-09 23:28
    VLAI
    Title
    Ettercap through 0.8.4.1 Use-After-Free via PCRE2 Filter Substitution
    Summary
    Ettercap through 0.8.4.1 contains a use-after-free vulnerability in func_pcre() in src/ec_filter.c that reads the PCRE2 ovector after freeing match data. Network-adjacent attackers can send packets matching a loaded pcre_regex() substitution filter to corrupt memory and potentially execute code as root.
    Severity
    8.7 (High)
    CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
    8.8 (High)
    CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    CWE
    Assigner
    VulnCheck CNA
    References
    Impacted products
    Vendor Product Version
    Ettercap ettercap Affected: 0 , ≤ 0.8.4.1 (custom)
        cpe:2.3:a:ettercap-project:ettercap:*:*:*:*:*:*:*:*
    		Create a notification for this product.
    Date Public
    2026-11-06 00:00
    Credits
    Adiel Sol, Arad Inbar, Erez Cohen, Nir Somech, Ben Grinberg, Daniel Lubel, Shir Sadon (DREAM Security Research Team) Emilio Escobar
    Show details on NVD website
    To clipboard 

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    CVE-2010-3844 (GCVE-0-2010-3844)

    Vulnerability from cvelistv5 – Published: 2019-11-12 21:47 – Updated: 2024-08-07 03:26
    VLAI
    Summary
    An unchecked sscanf() call in ettercap before 0.7.5 allows an insecure temporary settings file to overflow a static-sized buffer on the stack.
    Severity
    No CVSS data available.
    CWE
    • Buffer Overflow
    Assigner
    redhat CNA
    References
    Impacted products
    Vendor Product Version
    ettercap ettercap Affected: 0.7.3
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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