CVE-2021-38423: GurumDDS Heap-based Incorrect Calculation of Buffer Size

Critical severity · published May 5, 2022

CVE-2021-38423

GurumDDS Heap-based Incorrect Calculation of Buffer Size

9.8

CVSS

1.3%

EPSS

On KEV

Description

All versions of GurumDDS improperly calculate the size to be used when allocating the buffer, which may result in a buffer overflow.

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)1.3% · higher than 70% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

GurumDDS · GurumNetworks

all versions · source: vendor, NVD

Affected product

GurumDDS

GurumNetworks

All GurumDDS CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2021-38423

CVE.org

https://www.cve.org/CVERecord?id=CVE-2021-38423

Third Party Advisory

https://www.cisa.gov/uscert/ics/advisories/icsa-21-315-02