Buffer overflow in Rockwellautomation Flex I\/o 1794-Aent
CVE-2020-6085
An exploitable denial of service vulnerability exists in the ENIP Request Path Logical 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 by sending an Electronic Key Segment with less than 0x18 bytes following the Key Format field.
Vulnerability class: Buffer Overflow
EPSS: 0.036 (88.1th percentile) — read the EPSS interpretation.
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.
Affected products
- Rockwellautomation Flex_i\/o_1794-aent — versions 4.003
- N/a Allen Bradley — versions Allen-Bradley Flex IO 1794-AENT/B 4.003
Weakness classification (CWE)
References
- talos-cna@cisco.com (Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2020-6085?
- CVE-2020-6085 is a high-severity vulnerability in Rockwellautomation Flex I\/o 1794-Aent, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2020-10-19.
- How severe is CVE-2020-6085?
- High severity. CVSS v3 base score is 7.5 out of 10.