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Full vulnerability report · 2020
CVE-2020-0618High confidence

Microsoft SQL Server Reporting Services Remote Code Execution Vulnerability

Microsoft · SQL Server

8.8HighCVSS 3.1
Recommended action
Patch now

CISA confirms exploitation in the wild and lists 2024-10-09 as the remediation due date.

Patch available
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityHighOperational priority:Critical, raised one band.upgradedsince 18 Sep 2024

Evidence used

  • CISA confirms exploitation in the wild.
  • A structured source references public exploit or proof-of-concept material.
  • EPSS is 99.02% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict the affected network interface to trusted sources where business-safe.
  • Increase monitoring for the attack path and post-exploitation behaviour described in the report.

Verification

  1. Confirm that the asset runs Microsoft SQL Server and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: Within 3 daysRemediation target: Within 90 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2020-2113

CISA KEV mirrored by ENISA

A remote code execution vulnerability exists in Microsoft SQL Server Reporting Services when it incorrectly handles page requests, aka 'Microsoft SQL Server Reporting Services Remote Code Execution Vulnerability'.

EUVD state
Present in the current official mapping
Known exploitation
Recorded by ENISA since 18 Sep 2024. Evidence sources: cisa_kev.
ENISA score
9.8 · CVSS 3.1
Advisory evidence
No linked advisory details stored yet
Recommended actionPatch now

CISA confirms exploitation in the wild and lists 2024-10-09 as the remediation due date.

Patch available
01

What, why and how

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.

What

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.

Why

Attacker-influenced serialised data is reconstructed as trusted objects, which can invoke dangerous application behaviour.

How

An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may execute code or commands in the affected security context.

What

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.

Why

Attacker-influenced serialised data is reconstructed as trusted objects, which can invoke dangerous application behaviour.

How

An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may execute code or commands in the affected security context.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
Confirmed in the wild

CISA added this CVE to its Known Exploited Vulnerabilities catalogue on 2024-09-18. Known ransomware campaign use is recorded.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
Reference recorded

A structured CVE source labels at least one public reference as exploit material. BlackTree has not independently validated that it is safe, reliable or weaponised.

Likely attack path
a network path → Deserialization of Untrusted Data → execute code or commands in the affected security context
Attack surface
Network
Privileges required
Low: a basic authenticated account is required
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-502 ↗

CWE-502: Deserialization of Untrusted Data. The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
After compromise, an attacker may use built-in shells, scripting engines, scheduled tasks and native network utilities for discovery, persistence or movement. This is a plausible LoTL path, not evidence that it has occurred for every attack.
NetworkRemote code executionCWE-502CISA KEVPublic exploit reference
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

ENISA EUVD · EUVD-2020-2113Known-exploited evidence recorded

A remote code execution vulnerability exists in Microsoft SQL Server Reporting Services when it incorrectly handles page requests, aka 'Microsoft SQL Server Reporting Services Remote Code Execution Vulnerability'.

Official EUVD record ↗
CERT-FR · French · CERTFR-2020-AVI-082Multiples vulnérabilités dans les produits Microsoft

De multiples vulnérabilités ont été corrigées dans les produits Microsoft . Elles permettent à un attaquant de provoquer une élévation de privilèges, une exécution de code à distance et un contournement de la fonctionnalité de sécurité.

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2020-001825Microsoft SQL Server におけるリモートでコードを実行される脆弱性

Microsoft SQL Server には、Microsoft SQL Server Reporting Services がページ要求を誤って処理する場合、リモートでコードを実行される脆弱性が存在します。 ベンダは、本脆弱性を「Microsoft SQL Server Reporting Services のリモートでコードが実行される脆弱性」として公開しています。

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-6291美 CISA 발표 주요 Exploit 정보공유(Update. 2024-09-18)

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.

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-5096MS 2월 보안 위협에 따른 정기 보안 업데이트 권고

# □ 설명 o 공격자가 특수하게 제작된 악성 응용 프로그램을 실행할 경우 발생하는 스푸핑 취약점 o 관련취약점 : - 스푸핑 취약점(CVE-2020-0693, CVE-2020-0694) o 영향 : 스푸핑 o 중요도 : 중요 o 관련 KB번호 - 4484255, 4484259, 4484264, 4484255, 4484264, 4484259 ##### □ 해결책 o 영향 받는 소프트웨어를 이용하는 경우 마이크로소프트사의 보안 패치 적용 7. Microsoft Exchange Server 보안 업데이트 ##### □ 설명 o 공격자가 특수하게 제작된 악성 응용 프로그램을 실행할 경우, 원격코드실행을 허용하는 취약점 o 관련취약점 : - 원격코드 실행 취약점(CVE-2020-0688) - 권한 상승 취약점(CVE-2020-0692) o 영향 : 원격코드실행 o 중요도 : 중요 o 관련 KB번호 - 4536987, 4536988, 4536989 ##### □ 해결책 o 영향 받는 소프트웨어를 이용하는 경우 마이크로소프트사의 보안 패치 적용 8. Microsoft SQL Server 보안 업데이트 ##### □ 설명 o 공격자가 특수하게 제작된 악성 응용 프로그램을 실행할 경우, 원격코드실행을 허용하는 취약점 o 관련취약점 : - 원격코드 실행 취약점(CVE-2020-0618) o 영향 : 원격코드실행 o 중요도 : 중요 o 관련 KB번호 - 4532095, 4532097, 4532098, 4535288, 4535706 ##### □ 해결책 o 영향 받는 소프트웨어를 이용하는 경우 마이크로소프트사의 보안 패치 적용 9. ChakraCore 보안 업데이트 ##### □ 설명 o 공격자가 특수하게 제작된 악성 응용 프로그램을 실행할 경우, 원격코드실행을 허용하는 취약점 o 관련취약점 : - 원격코드 실행 취약점(CVE-2020-0710, CVE-2020-0711, CVE-2020-0712, CVE-2020-0713, CVE-2020-0767) o 영향 : 원격코드실행 o 중요도 : 긴급 ##### □ 해결책 o 영향 받는 소프트웨어를 이용하는 경우 마이크로소프트사의 보안 패치 적용 10. Adobe Flash Player 보안 업데이트 ##### □ 설명 o 공격자가 특수하게 제작된 악성 응용 프로그램을 실행할 경우 발생하는 권한상승 취약점 o 관련취약점 : - 권한상승 취약점(ADV200003) o 영향 : 권한상승 o 중요도 : 중요 o 관련 KB번호 - 4537759 ##### □ 해결책 o 영향 받는 소프트웨어를 이용하는 경우 마이크로소프트사의 보안 패치 적용 11. Windows 악성 소프트웨어 제거 도구 보안

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
Fixed
An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
Action
Review the linked authoritative reference and apply the recorded fixed release appropriate to the affected product branch.
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 11 Feb 2020 · Last source change 15 Aug 2026, 03:55 UTC · CWE-502 · Deserialization of Untrusted Data

CVE recordCVE.org · 5.2
CVSS sourceNIST NVD
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2020-2113
Product sourceCISA KEV
Remediation sourceCVE/CNA references
CWE sourceCISA ADP
NVD statusNVD enriched

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗
  1. BlackTree coverageBlackTree article coverage changed from no BlackTree article to 1 BlackTree article.
    Before
    no BlackTree article
    After
    1 BlackTree article
    BlackTree editorial ↗
  2. Affected versionsThe structured affected or fixed version information changed.
    Before
    2012 for 32-bit Systems Service Pack 4 (QFE); 2012 for x64-based Systems Service Pack 4 (QFE); 2016 for x64-based Systems Service Pack 2 (CU); unspecified · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
    After
    Microsoft SQL Server: 2012 for 32-bit Systems Service Pack 4 (QFE), 2012 for x64-based Systems Service Pack 4 (QFE), 2016 for x64-based Systems Service Pack 2 (CU); Microsoft SQL Server 2014 Service Pack 3 for x64-based Systems (GDR): unspecified; Microsoft SQL Server 2014 Service Pack 3 for x64-based Systems (CU): unspecified; Microsoft SQL Server 2016 for x64-based Systems Service Pack 2 (GDR): unspecified; Microsoft SQL Server 2014 Service Pack 3 for 32-bit Systems (GDR): unspecified; Microsoft SQL Server 2014 Service Pack 3 for 32-bit Systems (CU): unspecified · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
    CNA ↗
  3. CISA KEV stateCISA KEV now confirms exploitation in the wild.
    Before
    listed in CISA KEV since 2024-09-18
    After
    listed in CISA KEV since 2024-09-18
    CISA KEV ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Added to CISA KEV
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2020-2113↗CISA KEV record↗CVE authority or vendor reference↗Public exploit reference↗Public exploit reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2020-0618 · cve.blacktree.nl