CVE-2021-40719 Adobe Connect Deserialization of Untrusted Data Remote Code Execution
An attacker can achieve remote code execution on Adobe Connect servers by exploiting a deserialization vulnerability in AMF message processing.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-40719?
CVE-2021-40719 is a critical unsafe deserialization vulnerability in Adobe Connect, published on 21 Oct 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Adobe Connect version 11.2.3 (and earlier) is affected by a Deserialization of Untrusted Data vulnerability to achieve arbitrary method invocation when AMF messages are deserialized on an Adobe Connect server. An attacker can leverage this to execute remote code execution on the server.
Weakness: CWE-502
Which versions are affected by CVE-2021-40719?
It affects 1 product.
Products include Adobe Connect.
How do I fix CVE-2021-40719?
No fix has been published for CVE-2021-40719 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2021-40719 being exploited?
There is no known exploitation of CVE-2021-40719 in the wild and no public exploit code.
Other vulnerabilities in Adobe Connect
- CVE-2017-11291 Server-side request forgery in Adobe Connect 9.6.2 and earlier versions
- CVE-2026-75682 Adobe Connect | Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') (CWE-89)
- CVE-2023-4661 SQLi in Saphira Connect
- CVE-2023-4662 RCE in Saphira Connect
- CVE-2018-12804 Auth bypass in Adobe Connect 9.7.5 and earlier
Sources
Also known as GHSA-rj2h-5w53-cg32.