CVE-2026-129431
Ettercap through 0.8.5.1 Heap Out-of-Bounds Read via SOCKS5 Dissector
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
Ettercap through 0.8.5.1 contains a heap out-of-bounds read vulnerability in dissector_socks() in src/dissectors/ec_socks.c that allows network-adjacent attackers to read heap memory via unchecked SOCKS5 username/password lengths. Attackers can send a crafted SOCKS5 authentication packet observed by Ettercap to read up to 255 bytes past the heap buffer, disclosing memory printed and logged as captured credentials.
| CWE | CWE-125 |
| Vendor | ettercap |
| Product | ettercap |
| Published | Nov 14, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Affected Versions
Ettercap / ettercap
0 ≤ 0.8.5.1
References
github.com: https://github.com/Ettercap/ettercap/pull/1340 github.com: https://github.com/Ettercap/ettercap/blob/v0.8.5.1/src/dissectors/ec_socks.c#L108-L124 github.com: https://github.com/Ettercap/ettercap vulncheck.com: https://www.vulncheck.com/advisories/ettercap-through-0.8.5.1-heap-out-of-bounds-read-via-socks5-dissector
Credits
stilwel Emilio Escobar