Vulnerability · Published Dec 11, 2020 · Assigned by talos

CVE-2020-13556

Critical 9.8

In plain English

A critical-severity out-of-bounds write in EIP Stack Group. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 4.7% (higher than 92% of all known vulnerabilities).

Severity (CVSS 3.0)9.8Critical
Exploit odds (30 days)4.7%top 8.1% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

An out-of-bounds write vulnerability exists in the Ethernet/IP server functionality of EIP Stack Group OpENer 2.3 and development commit 8c73bf3. A specially crafted series of network requests can lead to remote code execution. An attacker can send a sequence of requests to trigger this vulnerability.

Affected products (as reported)

VendorProductVersions
n/a EIP Stack Group EIP Stack Group OpENer 2.3EIP Stack Group OpENer development commit 8c73bf3

Weakness: CWE-787 · Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References