Medium severity · published Jan 28, 2022
CVE-2021-26264
A specially crafted script could cause the DeltaV Distributed Control System Controllers (All Versions) to restart and cause a denial-of-service condition
5.5
CVSS
0.2%
EPSS
No
On KEV
Description
A specially crafted script could cause the DeltaV Distributed Control System Controllers (All Versions) to restart and cause a denial-of-service condition.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 8% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DD
Deltav Distributed Control System · Emerson
All versions, or not specified · source: NVD
DW
Deltav Workstation · Emerson
All versions, or not specified · source: NVD
Affected product
DD
Deltav Distributed Control System
Emerson
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-26264
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-26264
Mitigation
https://www.cisa.gov/uscert/ics/advisories/icsa-21-355-04
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