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01 Record

CVE-2023-42782

A insufficient verification of data authenticity vulnerability [CWE-345] in FortiAnalyzer version 7.4.0 and below 7.2.3 allows a remote unauthenticated attacker to send messages to the syslog server

MediumPUBLISHEDCNA: fortinet
CNA base score5.0 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:C

02 Description

A insufficient verification of data authenticity vulnerability [CWE-345] in FortiAnalyzer version 7.4.0 and below 7.2.3 allows a remote unauthenticated attacker to send messages to the syslog server

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.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpactpartialSuccessful exploitation gives limited 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
0.43% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 37.4% of scored records. A rank, not a probability.
NVD base score
5.3 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
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 16:50Z3 YR AGO
Last updated
2024-09-18 20:50Z2 YR AGO
Reserved
2023-09-14
Assigning CNA
fortinet
Record state
PUBLISHED
Severity
Medium (CVSS 5.0)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:C
Weaknesses
  • CWE-345Insufficient Verification of Data AuthenticityClass
Data version
5.1
Document digest
35013c23da60bdb2e5a617eb90b91edb74fa339ac075774f1125a6abc9b2cc2b

05 Affected products

VendorProductVersionsPlatforms
FortinetFortiAnalyzer7.4.0, 7.2.0 to 7.2.3, 7.0.0 to 7.0.9, 6.4.0 to 6.4.13, 6.2.0 to 6.2.12—
fortinetfortianalyzer-bigdata7.2.0 to 7.2.5, 7.0, 6.4, 6.2—
fortinetfortimanager7.4.0, 7.2.0 to 7.2.3, 7.0.0 to 7.0.9, 6.4, 6.2—

06 References

07 Remediation

Please upgrade to FortiAnalyzer version 7.4.1 or above Please upgrade to FortiAnalyzer version 7.2.4 or above AND Configure the "un-encrypted-logging" option to disable receiving syslog without encryption through UDP(514) or TCP(514). config system log setting set un-encrypted-logging disable