CVE-2023-33307 Null dereference in FortiOS

What is CVE-2023-33307?

CVE-2023-33307 is a medium-severity vulnerability in Fortinet Fortios, published on 16 Jun 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A null pointer dereference in Fortinet FortiOS before 7.2.5 and before 7.0.11, FortiProxy before 7.2.3 and before 7.0.9 allows attacker to denial of sslvpn service via specifically crafted request in network parameter.

Weakness: CWE-476

Which versions are affected by CVE-2023-33307?

It affects 2 products.

Products include Fortinet Fortios, Fortinet Fortiproxy.

How do I fix CVE-2023-33307?

No fix has been published for CVE-2023-33307 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-33307 being exploited?

There is no known exploitation of CVE-2023-33307 in the wild and no public exploit code.

Other vulnerabilities in Fortinet Fortios

• CVE-2024-23113 Fortinet Multiple Products Format String Exploited Critical 9.8
• CVE-2022-40684 Fortinet Multiple Products Authentication Bypass Exploited Critical 9.8
• CVE-2024-55591 Fortinet FortiOS and FortiProxy Authentication Bypass Exploited Critical 9.6
• CVE-2024-21762 Fortinet FortiOS Out-of-Bound Write Exploited Critical 9.6
• CVE-2022-42475 Fortinet FortiOS Heap-Based Buffer Overflow Exploited Critical 9.3

All Fortinet Fortios vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-mr3g-v6hc-ghw4.