What is CVE-2020-6083?

CVE-2020-6083 is a high-severity vulnerability in Rockwellautomation Allen-Bradley Flex Io 1794-Aent\/b, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2020-10-14.

How severe is CVE-2020-6083?

High severity. CVSS v3 base score is 7.5 out of 10.

Buffer overflow in Rockwellautomation Allen-Bradley Flex Io 1794-Aent\/b

CVE-2020-6083

An exploitable denial of service vulnerability exists in the ENIP Request Path Port Segment functionality of Allen-Bradley Flex IO 1794-AENT/B. 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

EPSS: 0.035 (87.9th 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 Allen-bradley_flex_io_1794-aent\/b
Rockwellautomation Allen-bradley_flex_io_1794-aent\/b_firmware — versions 4.003
N/a Allen Bradley — versions Allen-Bradley Flex IO 1794-AENT/B 4.003

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

talos-cna@cisco.com (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-6083?: CVE-2020-6083 is a high-severity vulnerability in Rockwellautomation Allen-Bradley Flex Io 1794-Aent\/b, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2020-10-14.
How severe is CVE-2020-6083?: High severity. CVSS v3 base score is 7.5 out of 10.