What is CVE-2020-8230?

CVE-2020-8230 is a medium-severity vulnerability in Nextcloud Desktop, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.5/10. Published 2020-08-17.

How severe is CVE-2020-8230?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Is CVE-2020-8230 known to be exploited?

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

Buffer overflow in Nextcloud Desktop

CVE-2020-8230

A memory corruption vulnerability exists in NextCloud Desktop Client v2.6.4 where missing ASLR and DEP protections in for windows allowed to corrupt memory.

Vulnerability class: Buffer Overflow

EPSS: 0.004 (27.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Nextcloud Desktop
N/a Desktop Client — versions 2.6.5

Weakness classification (CWE)

Public proof-of-concept exploits

Live-Hack-CVE/CVE-2020-8230

References

support@hackerone.com (Patch, Third Party Advisory, x_refsource_MISC, Issue Tracking)
support@hackerone.com (x_refsource_MISC, Broken Link, Vendor Advisory)

Frequently asked questions

What is CVE-2020-8230?: CVE-2020-8230 is a medium-severity vulnerability in Nextcloud Desktop, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.5/10. Published 2020-08-17.
How severe is CVE-2020-8230?: Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2020-8230 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.