CVE-2021-1570 Cisco Jabber Desktop and Mobile Client Software Vulnerabilities

Medium 6.5 Published 16 Jun 2021 Updated 7 Nov 2024

Attackers can cause denial of service or access sensitive information in Cisco Jabber clients on Windows, Mac, and mobile platforms.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-1570?

CVE-2021-1570 is a medium-severity denial of service vulnerability in Cisco Jabber, published on 16 Jun 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Multiple vulnerabilities in Cisco Jabber for Windows, Cisco Jabber for Mac, and Cisco Jabber for mobile platforms could allow an attacker to access sensitive information or cause a denial of service (DoS) condition. For more information about these vulnerabilities, see the Details section of this advisory.

Weakness: CWE-20, CWE-399

Which versions are affected by CVE-2021-1570?

It affects 1 product.

Products include Cisco Jabber.

How do I fix CVE-2021-1570?

No fix has been published for CVE-2021-1570 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2021-1570 being exploited?

There is no known exploitation of CVE-2021-1570 in the wild and no public exploit code.

Sources

Also known as GHSA-34hj-xw38-hm2j.