VulnerabilityModified
CVE-2021-20988
This may lead to a denial of service of the affected device.
HIGH 7.5EPSS 0.99%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.99%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In Hilscher rcX RTOS versions prios to V2.1.14.1 the actual UDP packet length is not verified against the length indicated by the packet. This may lead to a denial of service of the affected device.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.99% probability · 62th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- hilscher/rcx rtos · pepperl-fuchs/ice1-16di-g60l-v1d firmware · pepperl-fuchs/ice1-16dio-g60l-c1-v1d firmware · pepperl-fuchs/ice1-16dio-g60l-v1d firmware · pepperl-fuchs/ice1-8di8do-g60l-c1-v1d firmware · pepperl-fuchs/ice1-8di8do-g60l-v1d firmware · pepperl-fuchs/ice1-8iol-g30l-v1d firmware · pepperl-fuchs/ice1-8iol-g60l-v1d firmware · pepperl-fuchs/ice1-8iol-s2-g60l-v1d firmware
- Source
- info@cert.vde.com
EPSS 1.0% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://cert.vde.com/de-de/advisories/vde-2021-018Third Party Advisory
- https://kb.hilscher.com/display/ISMS/2019-04-10+Wrong+handling+of+the+UDP+checksumVendor Advisory
- https://cert.vde.com/de-de/advisories/vde-2021-018Third Party Advisory
- https://kb.hilscher.com/display/ISMS/2019-04-10+Wrong+handling+of+the+UDP+checksumVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.