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CVE-2023-42789

CRITICALCVSS 9.8/10EPSS 3.28%

Last modified

CVE-2023-42789 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A out-of-bounds write in Fortinet FortiOS 7.4.0 through 7.4.1, 7.2.0 through 7.2.5, 7.0.0 through 7.0.12, 6.4.0 through 6.4.14, 6.2.0 through 6.2.15, FortiProxy 7.4.0, 7.2.0 through 7.2.6, 7.0.0 through 7.0.12, 2.0.0 through 2.0.13 allows attacker to execute unauthorized code or commands via specially crafted HTTP requests.. EPSS estimates a 3.28% chance of exploitation in the next 30 days.

Description

A out-of-bounds write in Fortinet FortiOS 7.4.0 through 7.4.1, 7.2.0 through 7.2.5, 7.0.0 through 7.0.12, 6.4.0 through 6.4.14, 6.2.0 through 6.2.15, FortiProxy 7.4.0, 7.2.0 through 7.2.6, 7.0.0 through 7.0.12, 2.0.0 through 2.0.13 allows attacker to execute unauthorized code or commands via specially crafted HTTP requests.

Metrics

CVSS 3.1
9.8/10

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

EPSS Probability
3.28%

86.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
FortinetFortiproxy>= 2.0.0, <= 2.0.13
FortinetFortiproxy>= 7.0.0, <= 7.0.12
FortinetFortiproxy>= 7.2.0, <= 7.2.6
FortinetFortiproxy7.4.0
FortinetFortios>= 6.2.0, <= 6.2.15
FortinetFortios>= 6.4.0, <= 6.4.14
FortinetFortios>= 7.0.0, <= 7.0.12
FortinetFortios>= 7.2.0, <= 7.2.5
FortinetFortios7.4.0
FortinetFortios7.4.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2023-42789?
A out-of-bounds write in Fortinet FortiOS 7.4.0 through 7.4.1, 7.2.0 through 7.2.5, 7.0.0 through 7.0.12, 6.4.0 through 6.4.14, 6.2.0 through 6.2.15, FortiProxy 7.4.0, 7.2.0 through 7.2.6, 7.0.0 through 7.0.12, 2.0.0 through 2.0.13 allows attacker to execute unauthorized code or commands via specially crafted HTTP requests.
How severe is CVE-2023-42789?
CVE-2023-42789 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 3.28% probability of exploitation in the next 30 days.
How do I fix CVE-2023-42789?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-42789?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST