MEDIUM
CVE-2020-11909
CWE-191Published: June 17, 2020· Updated: Jun 17, 2026
5.3
CVSS v3.1
Official Description
The Treck TCP/IP stack before 6.0.1.66 has an IPv4 Integer Underflow.
Technical Analysis
CVE-2020-11909 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Affected Vendors & Products
treck1 product(s)
tcp\/ip
Source: NVD CPE · 1 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
ADVISORYhttps://www.treck.com
ADVISORYhttps://www.treck.com
All References (18)
→
https://jsof-tech.com/vulnerability-disclosure-policy/Third Party Advisory
→
→
https://www.jsof-tech.com/ripple20/Exploit · Third Party Advisory
→
https://www.kb.cert.org/vuls/id/257161/Mitigation · Third Party Advisory · US Government Resource
→
https://www.treck.comProduct · Vendor Advisory
→
https://jsof-tech.com/vulnerability-disclosure-policy/Third Party Advisory
→
→
https://www.jsof-tech.com/ripple20/Exploit · Third Party Advisory
Quick Facts
CVE IDCVE-2020-11909
CVSS Score5.3 / 10
SeverityMEDIUM
WeaknessCWE-191
CISA KEVNo
Affected1 vendor(s)
PublishedJun 17, 2020
Related CVEs (CWE-191)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2020-11909 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.