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01 Record

CVE-2026-47123

FreeScout: Agent Impersonation via Missing HMAC Verification on Notification Reply Message-ID Path

HighPUBLISHEDCNA: GitHub_M
CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N
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02 Description

FreeScout: Agent Impersonation via Missing HMAC Verification on Notification Reply Message-ID Path

03 Exploitation and scoring

Exploitation
Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
SSVC decision
  • ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • 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
0.14% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 3.7% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N
NVD analysis status
Deferred. NVD last modified this record on 2026-07-22.
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
2026-05-29 19:51Z5 MO AGO
Last updated
2026-06-02 01:54Z4 MO AGO
Reserved
2026-05-18
Assigning CNA
GitHub_M
Record state
PUBLISHED
Severity
High (CVSS 7.5)
CNA CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N
Weaknesses
  • CWE-290Authentication Bypass by SpoofingBase
  • CWE-345Insufficient Verification of Data AuthenticityClass
Data version
5.2
Document digest
9ae8a9a392e98953a9a4b6db0fa424adf8a71635e80c34818d6a358ee100f397

05 Affected products

VendorProductVersionsPlatforms
freescout-help-deskfreescout< 1.8.220—

06 References