Critical severity · published May 5, 2022
CVE-2021-38439
GurumDDS Heap-based Buffer Overflow
9.8
CVSS
2.8%
EPSS
No
On KEV
Description
All versions of GurumDDS are vulnerable to heap-based buffer overflow, which may cause a denial-of-service condition or remotely execute arbitrary code.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.8% · higher than 86% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GU
GurumDDS · GurumNetworks
all versions · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-38439
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-38439
Third Party Advisory
https://www.cisa.gov/uscert/ics/advisories/icsa-21-315-02
More from GurumDDS
9.8
CVE-2021-38423
GurumDDS Heap-based Incorrect Calculation of Buffer Size