PT-2023-3075 · Fortinet · Fortigate+2

CVE-2023-27997 · Published 2023-06-11 · Updated 2026-06-24

Positive Technologies (AI Summary)

CVSS v2.0

10

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions FortiOS versions prior to 7.2.5 FortiOS versions prior to 7.0.12 FortiOS versions prior to 6.4.13 FortiOS versions prior to 6.0.17 FortiProxy versions prior to 7.2.4 FortiProxy versions prior to 7.0.10 FortiProxy versions prior to 2.0.13 FortiProxy version 1.2 FortiProxy version 1.1

Description A heap-based buffer overflow in the SSL-VPN component may allow a remote attacker to execute arbitrary code or commands by sending specifically crafted requests. A heap-based buffer overflow occurs when an application writes more data to a heap-allocated memory area than it can hold, potentially corrupting adjacent memory.

Recommendations As a temporary workaround, disable SSL-VPN. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

RCE

Memory Corruption

Heap Based Buffer Overflow

Weakness Enumeration

CWE-787

CWE-122

Related Identifiers

BDU:2023-03157

CVE-2023-27997

Affected Products

Fortigate

Fortios

Fortiproxy

References · 152

• 🔥 https://github.com/BishopFox/CVE-2023-27997-check · Exploit
• 🔥 https://github.com/lexfo/xortigate-cve-2023-27997 · Exploit
• 🔥 https://github.com/rio128128/CVE-2023-27997-POC · Exploit
• 🔥 https://github.com/delsploit/CVE-2023-27997 · Exploit
• 🔥❌ https://github.com/Pik-sec/cve-2023-27997 · Exploit, Deleted
• 🔥❌ https://github.com/hheeyywweellccoommee/CVE-2023-27997-POC-FortiOS-SSL-VPN-buffer-overflow-vulnerability-ssijz · Exploit, Deleted
• https://safe-surf.ru/specialists/bulletins-nkcki/695995 · Security Note
• https://bdu.fstec.ru/vul/2023-03157 · Security Note
• https://osv.dev/vulnerability/CVE-2023-27997 · Vendor Advisory
• https://safe-surf.ru/specialists/bulletins-nkcki/705858 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-27997 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-27997 · Security Note
• https://github.com/mindedsecurity/semgrep-rules-android-security · Note
• https://twitter.com/reverseame/status/1703372482936234217 · Twitter Post
• https://t.me/hybgl/1658 · Telegram Post