What is CVE-2021-1526?

CVE-2021-1526 is a high-severity vulnerability in Cisco Webex Meetings, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.8/10. Published 2021-06-04.

How severe is CVE-2021-1526?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in Cisco Webex Meetings

CVE-2021-1526

A vulnerability in Cisco Webex Player for Windows and MacOS could allow an attacker to execute arbitrary code on an affected system. This vulnerability is due to insufficient validation of values in Webex recording files that are in Webex…

Vulnerability class: Buffer Overflow

EPSS: 0.005 (64.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Cisco Webex Meetings — versions n/a

Weakness classification (CWE)

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

References

20210602 Cisco Webex Player Memory Corruption Vulnerability (vendor-advisory, x_refsource_CISCO)

Frequently asked questions

What is CVE-2021-1526?: CVE-2021-1526 is a high-severity vulnerability in Cisco Webex Meetings, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.8/10. Published 2021-06-04.
How severe is CVE-2021-1526?: High severity. CVSS v3 base score is 7.8 out of 10.