Vulnerability · Published Oct 15, 2020 · Assigned by ABB
CVE-2020-11637Automation Runtime TFTP Service DoS Vulnerability
Medium 5.8
In plain English
A medium-severity memory leak in Automation Runtime from B&R. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 66% of all known vulnerabilities).
Severity (CVSS 3.1)5.8Medium
Exploit odds (30 days)1.1%top 34.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A memory leak in the TFTP service in B&R Automation Runtime versions <N4.26, <N4.34, <F4.45, <E4.53, <D4.63, <A4.73 and prior could allow an unauthenticated attacker with network access to cause a denial of service (DoS) condition.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| B&R | Automation Runtime | unspecified – through 4.1x4.2x – before N4.264.3x – before N4.344.4x – before F4.454.5x – before E4.534.6x – before D4.634.7x – before A4.73 |
Weakness: CWE-401 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L