Buffer overflow in Rockwellautomation Flex Io 1794-Aent\/b
CVE-2020-6088
An exploitable denial of service vulnerability exists in the ENIP Request Path Network Segment functionality of Allen-Bradley Flex IO 1794-AENT/B 4.003. A specially crafted network request can cause a loss of communications with the device resulting in denial-of-service. An attacker can send a malicious packet to trigger this vulnerability.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.035 (88.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 88.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.035 · newest: 0.035 · change: 0.000
Affected products
- Rockwellautomation Flex Io 1794-Aent\/b
- Rockwellautomation Flex Io 1794-Aent\/b Firmware — versions 4.003
- Allen-Bradley — versions Allen-Bradley Flex IO 1794-AENT/B 4.003
Weakness classification (CWE)
Public proof-of-concept exploits
References
- talosintelligence.com/vulnerability_reports/TALOS-2020-1008 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-6088?
- CVE-2020-6088 is a high-severity vulnerability in Rockwellautomation Flex Io 1794-Aent\/b, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2021-02-04.
- How severe is CVE-2020-6088?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2020-6088 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.