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FortinetCVE-2021-26109

HistoryDec 08, 2021 - 1:15 p.m.

CVE-2021-26109

2021-12-0813:15:07

CWE-190

fortinet

web.nvd.nist.gov

sslvpn

memory allocator

integer overflow

vulnerability

fortios

cve-2021-26109

nvd

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

9.8

Confidence

High

EPSS

0.003

Percentile

69.4%

JSON

An integer overflow or wraparound vulnerability in the memory allocator of SSLVPN in FortiOS before 7.0.1 may allow an unauthenticated attacker to corrupt control data on the heap via specifically crafted requests to SSLVPN, resulting in potentially arbitrary code execution.

Affected configurations

Nvd

Node

fortinetfortiosRange6.0.0–6.0.12

fortinetfortiosRange6.2.0–6.2.9

fortinetfortiosRange6.4.0–6.4.5

fortinetfortiosMatch7.0.0

VendorProductVersionCPE
fortinetfortios*cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
fortinetfortios7.0.0cpe:2.3:o:fortinet:fortios:7.0.0:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
fortinet	fortios	*	cpe:2.3:o:fortinet:fortios::::::::
fortinet	fortios	7.0.0	cpe:2.3:o:fortinet:fortios:7.0.0:::::::*

CNA Affected

[
  {
    "product": "Fortinet FortiOS",
    "vendor": "Fortinet",
    "versions": [
      {
        "status": "affected",
        "version": "FortiOS before 7.0.1"
      }
    ]
  }
]

References

fortiguard.com/advisory/FG-IR-21-049

Social References

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

9.8

Confidence

High

EPSS

0.003

Percentile

69.4%

JSON

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