---
id: "CVE-2020-0618"
kind: "vulnerability"
aliases: ["CVE-2020-0618"]
title: "A remote code execution vulnerability exists in Microsoft SQL Server Reporting Services when it incorrectly handles\u2026"
severity: "critical"
cvss: 9.8
epss: null
exploited: true
status: "open"
category: "runtime"
products: [{"name": "Microsoft SQL Server", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "microsoft sql server", "fixed": [], "affected": "= 2012", "ecosystem": "vendor"}, {"name": "microsoft sql server", "fixed": [], "affected": "= 2014", "ecosystem": "vendor"}, {"name": "microsoft sql server", "fixed": [], "affected": "= 2016", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["exploited", "ransomware", "reporting-services", "runtime", "sql-server", "windows"]
not_affected_if: ["auth-required", "reporting-services-not-installed"]
published_at: "2020-02-11T22:15:13+00:00"
first_seen_at: "2026-10-23T19:11:51+00:00"
updated_at: "2026-10-23T22:29:05+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2020-0618", "first_seen_at": "2026-10-23T19:11:51+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-0618", "first_seen_at": "2026-10-23T22:29:05+00:00"}]
---

# A remote code execution vulnerability exists in Microsoft SQL Server Reporting Services when it incorrectly handles…

Microsoft SQL Server Reporting Services has a deserialization flaw when handling page requests. An authenticated attacker can run code as the Report Server service account.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:Microsoft SQL Server affected ? fixed ?
- vendor:microsoft sql server affected = 2012 fixed ?
- vendor:microsoft sql server affected = 2014 fixed ?
- vendor:microsoft sql server affected = 2016 fixed ?

## Fix

Apply the Microsoft patch for CVE-2020-0618 or follow the vendor mitigation; CISA says to discontinue use if no mitigation exists.

## Timeline

- 2026-10-23T19:11:51+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2020-0618
- 2026-10-23T22:29:05+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2020-0618

## From the sources

Microsoft SQL Server Reporting Services contains a deserialization vulnerability when handling page requests incorrectly. An authenticated attacker can exploit this vulnerability to execute code in the context of the Report Server service account.

CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_