What is CVE-2021-1301?

CVE-2021-1301 is a critical-severity vulnerability in Cisco Sd-wan Solution, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2021-01-20.

How severe is CVE-2021-1301?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Cisco Sd-wan Solution

CVE-2021-1301

Multiple vulnerabilities in Cisco SD-WAN products could allow an unauthenticated, remote attacker to execute attacks against an affected device. For more information about these vulnerabilities, see the Details section of this advisory.

Vulnerability class: Buffer Overflow

EPSS: 0.009 (75.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Cisco Sd-wan Solution — versions n/a

Weakness classification (CWE)

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

References

20210120 Cisco SD-WAN Buffer Overflow Vulnerabilities (vendor-advisory, x_refsource_CISCO)

Frequently asked questions

What is CVE-2021-1301?: CVE-2021-1301 is a critical-severity vulnerability in Cisco Sd-wan Solution, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2021-01-20.
How severe is CVE-2021-1301?: Critical severity. CVSS v3 base score is 9.8 out of 10.