CVEvulnerability

CVE-2020-12819

7.5 HIGH Published 2024-12-19 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2024-12-19
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.4 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-122, CWE-787

Description

A heap-based buffer overflow vulnerability in the processing of Link Control Protocol messages in FortiGate versions 5.6.12, 6.0.10, 6.2.4 and 6.4.1 and earlier may allow a remote attacker with valid SSL VPN credentials to crash the SSL VPN daemon by sending a large LCP packet, when tunnel mode is enabled. Arbitrary code execution may be theoretically possible, albeit practically very difficult to achieve in this context

Affected configurations

• fortinet fortios (< 5.6.13) • fortinet fortios (>= 6.0.0 < 6.0.11) • fortinet fortios (>= 6.2.0 < 6.2.5) • fortinet fortios (>= 6.4.0 < 6.4.2)

Related

Weakness · CWE (2)

  • CWE-122 Heap-based Buffer Overflow weakness
  • CWE-787 Out-of-bounds Write weakness

References