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CVE-2023-33307

20
FAUCET Score

CVE-2023-33307 is a null pointer dereference vulnerability affecting Fortinet FortiOS (versions before 7.2.5 and 7.0.11) and FortiProxy (versions before 7.2.3 and 7.0.9). An authenticated attacker can exploit this by sending a specially crafted request to the SSLVPN service, leading to a denial of service. With a CVSS score of 6.5 (Medium), this vulnerability is network-exploitable with low attack complexity and no user interaction required, resulting in high availability impact. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 7.0.0, <= 7.0.9CPE matchmatch criteria
cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*
>= 7.2.0, <= 7.2.3CPE matchmatch criteria
cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*
>= 7.0.0, < 7.0.11CPE matchmatch criteria
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
>= 7.2.0, < 7.2.5CPE matchmatch criteria
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.59%
Probability of exploitation in next 30 days
EPSS Percentile
44.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0059 is in the 55th percentile among its peer group of 21,974 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

exchange.xforce.ibmcloud.com / vulnerabilities/258201
Third Party Advisory
fortiguard.com / psirt/FG-IR-23-015
Not Applicable