CVE-2021-36173

A heap-based buffer overflow in the firmware signature verification function of FortiOS versions 7.0.1, 7.0.0, 6.4.0 through 6.4.6, 6.2.0 through 6.2.9, and…

High · published December 8, 2021

CVSS v3.1
8.0
EPSS
2%
Percentile
74.8
In the wild
Unconfirmed
What it is

A heap-based buffer overflow in the firmware signature verification function of FortiOS versions 7.0.1, 7.0.0, 6.4.0 through 6.4.6, 6.2.0 through 6.2.9, and 6.0.0 through 6.0.13 may allow an attacker to execute arbitrary code via specially crafted installation images.

The record
Technical detail
CVSS v3.1
8.0 · HIGH
Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:W/RC:C
CVSS v4.0
Not supplied
EPSS
0.01548 · 74.8th percentile
Published
2021-12-08T18:42Z
EPSS history
Timeline
  • 08 DEC 18:42Z
    A heap-based buffer overflow in the firmware signature verification function of FortiOS versions 7.0.1, 7.0.0, 6.4.0 through 6.4.6, 6.2.0 through 6.2.9, and…
    cvelistv5