What is CVE-2021-21555?

CVE-2021-21555 is a medium-severity vulnerability in Dell Poweredge Bios Intel 15g, classified under Heap-based Buffer Overflow. CVSS score: 6.1/10. Published 2021-06-14.

How severe is CVE-2021-21555?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2021-21555 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Dell Poweredge Bios Intel 15g

CVE-2021-21555

Dell PowerEdge R640, R740, R740XD, R840, R940, R940xa, MX740c, MX840c, and T640 Server BIOS contain a heap-based buffer overflow vulnerability in systems with NVDIMM-N installed. A local malicious user with high privileges may potentially…

Vulnerability class: Buffer Overflow

EPSS: 0.003 (23.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:L.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

security_alert@emc.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-21555?: CVE-2021-21555 is a medium-severity vulnerability in Dell Poweredge Bios Intel 15g, classified under Heap-based Buffer Overflow. CVSS score: 6.1/10. Published 2021-06-14.
How severe is CVE-2021-21555?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2021-21555 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.