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01 Record

CVE-2023-36556

An incorrect authorization vulnerability [CWE-863] in FortiMail webmail version 7.2.0 through 7.2.2, version 7.0.0 through 7.0.5 and below 6.4.7 allows an authenticated attacker to login on other

HighPUBLISHEDCNA: fortinet
CNA base score8.6 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:X/RC:C

02 Description

An incorrect authorization vulnerability [CWE-863] in FortiMail webmail version 7.2.0 through 7.2.2, version 7.0.0 through 7.0.5 and below 6.4.7 allows an authenticated attacker to login on other

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
1.09% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 65.1% of scored records. A rank, not a probability.
NVD base score
8.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2023-10-10 16:49Z3 YR AGO
Last updated
2025-12-16 18:23Z10 MO AGO
Reserved
2023-06-23
Assigning CNA
fortinet
Record state
PUBLISHED
Severity
High (CVSS 8.6)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:X/RC:C
Weaknesses
  • CWE-863Incorrect AuthorizationClass
Data version
5.2
Document digest
5d744217f120207a22ae1401d9c65380047eac3004292b8ff3864b5bd790196e

05 Affected products

VendorProductVersionsPlatforms
FortinetFortiMail7.2.0 to 7.2.2, 7.0.0 to 7.0.5, 6.4.0 to 6.4.7, 6.2.0 to 6.2.9, 6.0.0 to 6.0.12—

06 References

07 Remediation

Please upgrade to FortiMail version 7.4.0 or above Please upgrade to FortiMail version 7.2.3 or above Please upgrade to FortiMail version 7.0.6 or above Please upgrade to FortiMail version 6.4.8 or above