Raw vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:LSummary
CVE-2020-11899 is a medium-severity Out-of-bounds Read (CWE-125) vulnerability in Treck Tcp\/Ip. Its CVSS base score is 5.4 (Medium).
Operationally, ranked in the top 3% of CVEs by exploit likelihood; CISA has added it to the Known Exploited Vulnerabilities catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified map to SI-2 (Flaw Remediation) and SC-7 (Boundary Protection) — see the control section below for these in your framework.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
The vulnerability is an out-of-bounds read (CWE-125) affecting the Treck TCP/IP stack in versions prior to 6.0.1.66. It is triggered during processing of IPv6 traffic and carries a CVSS 3.1 base score of 5.4.
An attacker on an adjacent network can send crafted IPv6 packets without authentication or user interaction. Successful exploitation can modify or disrupt limited system behavior, resulting in integrity and availability impacts while leaving confidentiality unaffected.
Vendor advisories from Cisco, Aruba Networks, and NetApp reference the issue and direct users to updated Treck stack releases or vendor-specific patches that resolve the out-of-bounds condition. No public details on in-the-wild exploitation are provided in the available references.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2020-4236
Vulnerability Data
The Treck TCP/IP stack before 6.0.1.66 has an IPv6 Out-of-bounds Read.
- CWE(s)
- KEV Date Added
- 03 March 2022
Related Threats
Likely ATT&CK TechniquesAI
Techniques this vulnerability likely enables, inferred from its description, weakness type, and attributed-actor tradecraft. Confidence is per-technique.
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
Mitigating Controls (NIST 800-53 r5) AI
Directly requires timely application of vendor patches that eliminate the out-of-bounds read in the Treck IPv6 stack.
Boundary filtering or inspection of IPv6 traffic can drop crafted packets before they reach the vulnerable stack implementation.
Monitoring of IPv6 packet flows and anomalous stack behavior can identify exploitation attempts against the out-of-bounds condition.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Secure-development practices such as bounds checking and memory-safe languages directly prevent out-of-bounds reads.
Vulnerability scanning and recording can discover instances of out-of-bounds reads after code is deployed.
Routine patching replaces vulnerable code containing out-of-bounds read flaws.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
Security testing in development and acceptance includes fuzzing and static analysis that detect out-of-bounds read defects before release.
Logging can record evidence of an out-of-bounds read but does not prevent the weakness itself.
Secure development life cycle mandates input validation and bounds checking that directly prevent out-of-bounds reads.
Application security requirements include explicit bounds and memory-safety specifications that mitigate buffer over-reads.
Secure system architecture and engineering principles require memory-safe design patterns and runtime protections against out-of-bounds access.
Secure coding standards explicitly forbid unsafe pointer arithmetic and mandate bounds-checked reads, eliminating CWE-125.