# Microsoft SQL Server Reporting Services Remote Code Execution · pwn.watch

> 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. Added to the CISA KEV catalog on 2024-09-18. CISA lists known use in ransomware campaigns. CVE-2020-0618 was assigned before 2024; the KEV listing came in 2024.

Page: https://pwn.watch/i/microsoft-sql-server-cve-2020-0618 · generated 2026-10-22T22:41:49.181Z

## Status
- Severity: critical · status: closed · patch: patched
- Product: Microsoft SQL Server
- Started: 2024-09-18 · closed: 2024-09-18
- CVEs: CVE-2020-0618
- Affected: See vendor advisory (versions are not listed in the KEV record)
- Fixed in: See vendor advisory linked in sources

## Follow this incident
- RSS (one item per update): https://pwn.watch/i/microsoft-sql-server-cve-2020-0618/feed.xml
- JSON Feed: https://pwn.watch/i/microsoft-sql-server-cve-2020-0618/feed.json
- Full data (timeline, sources, posts, agentBrief): https://pwn.watch/i/microsoft-sql-server-cve-2020-0618.json
- This file: https://pwn.watch/i/microsoft-sql-server-cve-2020-0618/llms.txt

## Updates (newest first)
- 2024-09-18: CISA added CVE-2020-0618 to the KEV catalog (federal deadline 2024-10-09) (https://www.cisa.gov/known-exploited-vulnerabilities-catalog)

## Fix brief
# Security brief: Microsoft SQL Server Reporting Services Remote Code Execution

Source: https://pwn.watch/i/microsoft-sql-server-cve-2020-0618 · status: closed (closed Sep 18, 2024) · severity: critical · updated Sep 18, 2024

## Patch status
**PATCHED: fixed releases exist. Upgrade to a fixed version.**

## What it is
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. Added to the CISA KEV catalog on 2024-09-18. CISA lists known use in ransomware campaigns. CVE-2020-0618 was assigned before 2024; the KEV listing came in 2024.

Severity detail: CVSS 9.8 (v3.1, CISA-ADP), actively exploited (CISA KEV); known ransomware use

- Product: Microsoft SQL Server
- CVE / advisory ids: CVE-2020-0618

## Affected versions
- See vendor advisory (versions are not listed in the KEV record)

## Check whether you're affected
No generic command applies (the product is a hosted service, appliance or desktop app). Check the installed version in its admin UI / About screen and compare with the versions above.

## Fix
Upgrade to one of these fixed versions (or later on the same branch):
- See vendor advisory linked in sources

After upgrading, re-run the checks above and redeploy/restart the affected services.

## Latest updates
- Sep 18, 2024: CISA added CVE-2020-0618 to the KEV catalog (federal deadline 2024-10-09)

## Advisories
- [Microsoft advisory: CVE-2020-0618](https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2020-0618) (Microsoft)
- [NVD: CVE-2020-0618](https://nvd.nist.gov/vuln/detail/CVE-2020-0618) (NVD)
- [CISA Known Exploited Vulnerabilities Catalog](https://www.cisa.gov/known-exploited-vulnerabilities-catalog) (CISA)

## Caveats
Derived from the CISA KEV JSON feed (catalogVersion 2026.10.21); CVSS from the CVE record (cveawg.mitre.org). startedAt is the CVE publication date when it fell in 2024 before the KEV listing, else the KEV dateAdded; exploitation may have begun earlier. closedAt is the KEV listing date (a fix or mitigation was available then unless noted).

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Machine-readable: https://pwn.watch/i/microsoft-sql-server-cve-2020-0618.json · all incidents: https://pwn.watch/incidents.json. Verify against the vendor advisory before changing production systems.