High severity · published Oct 11, 2021
CVE-2021-27665
An unauthenticated remote user could exploit a potential integer overflow condition in the exacqVision Server with a specially crafted script and cause denial-of-service condition
7.5
CVSS
1.6%
EPSS
No
On KEV
Description
An unauthenticated remote user could exploit a potential integer overflow condition in the exacqVision Server with a specially crafted script and cause denial-of-service condition.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.6% · higher than 75% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ES
Exacqvision Server · Johnsoncontrols
through 21.06.11.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-27665
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-27665
Mitigation
https://us-cert.gov/ics/advisories/icsa-21-280-03
Vendor Advisory
https://www.johnsoncontrols.com/cyber-solutions/security-advisories
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