01 Record
CVE-2026-69375
Microsoft Exchange Server Tampering Vulnerability
MediumPUBLISHEDCNA: microsoft
CNA base score6.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C
02 Description
Microsoft Exchange Server Tampering Vulnerability
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 ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.64% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 50.7% of scored records. A rank, not a probability.
- NVD base score
- 6.5 (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:N/I:H/A:N
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-09-29.
- 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
- 2026-09-08 17:12Z1 MO AGO
- Last updated
- 2026-10-14 23:07Z14 DAYS AGO
- Reserved
- 2026-08-03
- Assigning CNA
- microsoft
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 6.5)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C
- Weaknesses
- CWE-639Authorization Bypass Through User-Controlled KeyBase
- Data version
- 5.2
- Document digest
- 8866db1e297637da08be97ea265551032cab383c77ed5a7e564537daea1222e5
05 Affected products
VendorProductVersionsPlatforms
MicrosoftMicrosoft Exchange Server 2016 Cumulative Update 2315.01.0.0 to < 15.01.2507.073x64-based Systems
MicrosoftMicrosoft Exchange Server 2019 Cumulative Update 1415.02.0.0 to < 15.02.1544.046x64-based Systems
MicrosoftMicrosoft Exchange Server 2019 Cumulative Update 1515.02.0.0 to < 15.02.1748.051x64-based Systems
MicrosoftMicrosoft Exchange Server Subscription Edition RTM15.02.0.0 to < 15.02.2562.049x64-based Systems
06 References
- msrc.microsoft.comMicrosoft Exchange Server Tampering Vulnerabilityhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69375