PT-2025-1478 · Fortinet · Fortios

Published 2025-01-14 · Updated 2025-01-17 · CVE-2023-42786

Positive Technologies (AI Summary)

CVSS v2.0

6.8

Medium

Base vector

AV:N/AC:L/Au:S/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions FortiOS versions 6.0 through 7.4.1 FortiOS version 7.0 and all prior versions

Description A null pointer dereference in FortiOS allows an attacker to trigger a denial of service via a crafted http request. This issue may also allow a remote attacker with low privileges to crash the vpn service.

Recommendations For FortiOS versions 6.0 through 7.4.1, update to a version that includes the fix for this issue. For FortiOS version 7.0 and all prior versions, update to a version that includes the fix for this issue. As a temporary workaround, consider restricting access to the vulnerable http endpoint until a patch is available.

Fix

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BDU:2025-02661

CVE-2023-42786

Affected Products

Fortios

References · 8

• https://fortiguard.fortinet.com/psirt/FG-IR-23-293 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-42786 · Security Note
• https://bdu.fstec.ru/vul/2025-02661 · Security Note
• https://osv.dev/vulnerability/CVE-2023-42786 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-42786 · Security Note
• https://fortiguard.com/psirt/FG-IR-23-293 · Note
• https://reddit.com/r/k12cybersecurity/comments/1i1xpbm/msisac_cybersecurity_advisory_multiple · Reddit Post
• https://twitter.com/CVEnew/status/1879174648849744112 · Twitter Post