01 Record
CVE-2025-53782
Microsoft Exchange Server Elevation of Privilege Vulnerability
HighPUBLISHEDCNA: microsoft
CNA base score8.4 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
02 Description
Microsoft Exchange Server Elevation of Privilege 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 ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
- EPSS probability
- 0.35% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 29.1% of scored records. A rank, not a probability.
- NVD base score
- 7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-10-18.
- 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
- 2025-10-14 17:00Z1 YR AGO
- Last updated
- 2026-02-22 17:24Z8 MO AGO
- Reserved
- 2025-07-09
- Assigning CNA
- microsoft
- Record state
- PUBLISHED
- Severity
- High (CVSS 8.4)
- CNA CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
- Weaknesses
- CWE-303Incorrect Implementation of Authentication AlgorithmBase
- Data version
- 5.2
- Document digest
- a648bb40f2477ab4bad20495b47379998f353c7b6cebb7c5a162d272999d1e13
05 Affected products
VendorProductVersionsPlatforms
MicrosoftMicrosoft Exchange Server 2016 Cumulative Update 2315.01.0.0 to < 15.01.2507.061x64-based Systems
MicrosoftMicrosoft Exchange Server 2019 Cumulative Update 1415.02.0.0 to < 15.02.1544.036x64-based Systems
MicrosoftMicrosoft Exchange Server 2019 Cumulative Update 1515.02.0.0 to < 15.02.1748.039x64-based Systems
MicrosoftMicrosoft Exchange Server Subscription Edition RTM15.02.0.0 to < 15.02.2562.029x64-based Systems
06 References
- msrc.microsoft.comMicrosoft Exchange Server Elevation of Privilege Vulnerabilityhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53782