CVE-2023-27997
CVSS v3
9.8
CRITICAL
EPSS Score
90.3 %
exploit probability
CISA KEV
Yes
known exploited
Exploitation
—
SSVC status
Description
A heap-based buffer overflow vulnerability [CWE-122] in FortiOS version 7.2.4 and below, version 7.0.11 and below, version 6.4.12 and below, version 6.0.16 and below and FortiProxy version 7.2.3 and below, version 7.0.9 and below, version 2.0.12 and below, version 1.2 all versions, version 1.1 all versions SSL-VPN may allow a remote attacker to execute arbitrary code or commands via specifically crafted requests.
CISA Known Exploited Vulnerability
- Date Added
- 2023-06-13
- Patch Due Date
- 2023-07-04
- Ransomware Use
- Known
Technical details
- Published
- 2023-06-13
Frequently asked questions
What is CVE-2023-27997?
A heap-based buffer overflow vulnerability [CWE-122] in FortiOS version 7.2.4 and below, version 7.0.11 and below, version 6.4.12 and below, version 6.0.16 and below and FortiProxy version 7.2.3 and below, version 7.0.9 and below, version 2.0.12 and below, version 1.2 all versions, version 1.1 all versions SSL-VPN may allow a remote attacker to execute arbitrary code or commands via specifically crafted requests.
Is CVE-2023-27997 actively exploited?
Yes. CVE-2023-27997 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2023-07-04.
What is the CVSS score for CVE-2023-27997?
CVE-2023-27997 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2023-27997 affecting your environment?
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