EIP-2026-103655

PRE-CVE

Snort 2.4.0 - SACK TCP Option Error Handling Denial of Service

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-103655. PoCs published by nitr0us.

AI-analyzed exploit summary This exploit sends a malformed TCP packet with an invalid SACK option to trigger a crash in Snort <= 2.4.0 when running in verbose mode. The packet has a zero checksum, limiting its effectiveness to direct LAN connections.

Description

Snort 2.4.0 - SACK TCP Option Error Handling Denial of Service

Exploits (1)

exploitdb WORKING POC VERIFIED
by nitr0us · cdosmultiple
https://www.exploit-db.com/exploits/1213

This exploit sends a malformed TCP packet with an invalid SACK option to trigger a crash in Snort <= 2.4.0 when running in verbose mode. The packet has a zero checksum, limiting its effectiveness to direct LAN connections.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Snort <= 2.4.0
No auth needed
Prerequisites: Direct LAN access to the target · Snort running in verbose mode (-v)
devstral-2 · analyzed Feb 18, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026