CVE-2019-7840 Deserialization in ColdFusion

Critical 9.8 Published 12 Jun 2019 Updated 4 Aug 2024

Attackers can achieve arbitrary code execution in Adobe ColdFusion via deserialization of untrusted data.

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-2019-7840?

CVE-2019-7840 is a critical unsafe deserialization vulnerability in Adobe Coldfusion, published on 12 Jun 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

ColdFusion versions Update 3 and earlier, Update 10 and earlier, and Update 18 and earlier have a deserialization of untrusted data vulnerability. Successful exploitation could lead to arbitrary code execution.

Weakness: CWE-502

Which versions are affected by CVE-2019-7840?

It affects 1 product.

Products include Adobe Coldfusion.

How do I fix CVE-2019-7840?

No fix has been published for CVE-2019-7840 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-2019-7840 being exploited?

There is no known exploitation of CVE-2019-7840 in the wild and no public exploit code.

All Adobe Coldfusion vulnerabilities

Sources

Also known as GHSA-gcqh-p487-qh8q.