CVE-2020-11897
The Treck TCP/IP stack before 5.0.1.35 has an Out-of-Bounds Write via multiple malformed IPv6 packets.
Affects 2 products across 3 vendors.
Software writes data past buffer boundaries, corrupting memory and potentially enabling code execution.
The Treck TCP/IP stack before 5.0.1.35 is vulnerable to an Out-of-Bounds Write via multiple malformed IPv6 packets, leading to potential remote code execution and system compromise. This vulnerability has a CVSS score of 10.0, indicating critical severity.
BSID: BS-2020-GLOBAL-144022-C • Model: Qwen/Qwen2.5-72B-Instruct-AWQ • Confidence: HIGH
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| CVE ID | CVE-2020-11897 |
|---|---|
| BSID | BS-2020-GLOBAL-144022-C BreachSpider Global ID |
| CVSS Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
| Published | 2020-06-17 |
| Last Modified | 2024-11-21 |
| ICS Relevance | 70% |
| Weakness (CWE) | |
| Verticals | |
| Source | NVD |
The Treck TCP/IP stack before 5.0.1.35 has an Out-of-Bounds Write via multiple malformed IPv6 packets.
Source: NIST NVD / MITRE CVE Database
An attacker can exploit this vulnerability by sending specially crafted IPv6 packets to a target device running the affected Treck TCP/IP stack. The out-of-bounds write can lead to arbitrary code execution, allowing the attacker to gain control over the device. This attack can be performed remotely without any user interaction or authentication.
Exploitation Likelihood: MEDIUM
| Vendor | Product | Fixed Version |
|---|---|---|
| Schneider-Electric | — | — |
| Treck | Tcp\/Ip | — |
| Treck | Tcp/Ip | — |
| Wolfram Schneider | — | — |
| CISA KEV | Not in KEV catalog |
|---|---|
| Public Exploit | Not confirmed |
| PoC Code | Not confirmed |
Implement network segmentation and apply strict firewall rules to limit exposure to untrusted networks. Regularly monitor network traffic for suspicious activity.
No reliable network detection signature exists for this vulnerability class — apply the compensating controls above and the vendor patch. SAGE only publishes a network rule when a concrete on-the-wire signature can be grounded in the advisory.
This CVE violates CIP-007-R2 as it allows unauthorized access to electronic security perimeters, potentially compromising the integrity and availability of critical systems.
This CVE maps to SR 7.6 because it involves a vulnerability that can be exploited remotely, leading to loss of control and potential damage to industrial processes.
Virtual patch generated by CITED Relevance SAGE. Validate in isolated environment before production deployment. Compensating control only - does not replace vendor patch.
SAGE Enrichment Record — provenance & audit hash
| Model | Qwen/Qwen2.5-72B-Instruct-AWQ |
|---|---|
| Confidence | HIGH |
| Enriched At | 2026-05-24 |
| SHA-512 Audit Hash | ce7a16f9f7d6d946e160c44000c18525d18911e505f0e14fabe68fe6ea7341602dc679d212fe2a95fbb93b96b68e1250171da7db8a6d4fcecd2e1bb58f39d799 |
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