The Transmission Control Protocol (TCP) allows remote attackers to cause a denial of…
Priority LOW 39Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
The Transmission Control Protocol (TCP) allows remote attackers to cause a denial of service (bandwidth consumption) by sending ACK messages for packets that have not yet been received (optimistic ACKs), which can cause the sender to increase its transmission rate until it fills available bandwidth.
Why it matters now
EPSS 0.02317 83rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2005-3675
- 2026-10-03 Alias added: GHSA-33cf-9f58-g423
References
Advisory 1
More Tcp vulnerabilities
- TI-2004-00957 Multiple TCP/IP and ICMP implementations, when using Path MTU (PMTU) discovery (PMTUD)… CVSS 2.0MEDIUM 5.0
- TI-2005-00054 The original design of ICMP does not require authentication for host-generated ICMP error… CVSS 2.0MEDIUM 5.0
- TI-2005-00051 The original design of TCP does not check that the TCP sequence number in an ICMP error… CVSS 2.0HIGH 10.0
- TI-2005-00053 The original design of TCP does not require that port numbers be assigned randomly (aka… CVSS 2.0MEDIUM 5.0
- TI-2005-00052 The original design of TCP does not check that the TCP Acknowledgement number in an ICMP… CVSS 2.0MEDIUM 5.0
Sources
- CVE-2005-3675 · CVE Program
- CVE-2005-3675 · NVD
- FIRST EPSS
- GHSA-33cf-9f58-g423 · GitHub Advisory Database · CC BY 4.0
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