What is CVE-2020-3545?

CVE-2020-3545 is a medium-severity vulnerability in Cisco Firepower Extensible Operating System (Fxos), classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.0/10. Published 2020-09-04.

How severe is CVE-2020-3545?

Medium severity. CVSS v3 base score is 6.0 out of 10.

Is CVE-2020-3545 known to be exploited?

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

Buffer overflow in Cisco Firepower Extensible Operating System (Fxos)

CVE-2020-3545

A vulnerability in Cisco FXOS Software could allow an authenticated, local attacker with administrative credentials to cause a buffer overflow condition. The vulnerability is due to incorrect bounds checking of values that are parsed from…

Vulnerability class: Buffer Overflow

EPSS: 0.001 (19.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.0 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N.

Affected products

Cisco Firepower Extensible Operating System (Fxos) — versions n/a

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

Public proof-of-concept exploits

404notf0und/CVE-Flow

References

20200902 Cisco FXOS Software Buffer Overflow Vulnerability (vendor-advisory, x_refsource_CISCO)

Frequently asked questions

What is CVE-2020-3545?: CVE-2020-3545 is a medium-severity vulnerability in Cisco Firepower Extensible Operating System (Fxos), classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.0/10. Published 2020-09-04.
How severe is CVE-2020-3545?: Medium severity. CVSS v3 base score is 6.0 out of 10.
Is CVE-2020-3545 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.