How severe is CVE-2023-23782?

CVE-2023-23782 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-23782 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-23782?

CVE-2023-23782 affects Fortinet Fortiweb. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-23782?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-23782 published?

CVE-2023-23782 was published on 2023-02-16 and last updated on 2026-06-17.

CVE-2023-23782

CVE-2023-23782 is a high-severity vulnerability in Fortinet Fortiweb with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 0% (9th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Fortinet Fortiweb
Published: 2023-02-16
Last modified: 2026-06-17

Description

A heap-based buffer overflow in Fortinet FortiWeb version 7.0.0 through 7.0.1, FortiWeb version 6.3.0 through 6.3.19, FortiWeb 6.4 all versions, FortiWeb 6.2 all versions, FortiWeb 6.1 all versions allows attacker to escalation of privilege via specifically crafted arguments to existing commands.

Frequently asked questions

What is CVE-2023-23782?: A heap-based buffer overflow in Fortinet FortiWeb version 7.0.0 through 7.0.1, FortiWeb version 6.3.0 through 6.3.19, FortiWeb 6.4 all versions, FortiWeb 6.2 all versions, FortiWeb 6.1 all versions allows attacker to escalation of privilege via specifically crafted arguments to existing commands.
How severe is CVE-2023-23782?: CVE-2023-23782 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-23782 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-23782?: CVE-2023-23782 affects Fortinet Fortiweb. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-23782?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-23782 published?: CVE-2023-23782 was published on 2023-02-16 and last updated on 2026-06-17.

References

https://fortiguard.com/psirt/FG-IR-22-111

Affected products (1)

cpe:2.3:a:fortinet:fortiweb:*:*:*:*:*:*:*:*

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