Microsoft SMBv3 Remote Code Execution Vulnerability
Microsoft · SMBv3
10.0CriticalCVSS 3.1
Recommended action
Patch only the product branches with a verified fix
CISA confirms exploitation in the wild and lists 2022-08-10 as the remediation due date. Verified remediation exists for at least one product or source, but 2 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.
Published severityCritical→Operational priority:Critical, unchanged from published severity.unchanged
Evidence used
CISA confirms exploitation in the wild.
A structured source references public exploit or proof-of-concept material.
The selected CVSS metric records a network-reachable, unauthenticated path with no user interaction.
EPSS is 99.81% 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
Confirm that the asset runs Microsoft SMBv3 and falls inside the recorded affected range.
Verify the installed build against the product-specific fixed version after deployment.
Validate exposure, authentication requirements and compensating controls in the actual environment.
Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Cross-source reconciliation
Remediation availability differs by product scope
Verified remediation exists for at least one product or source, but 2 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.
SICK PSIRT: 2 affected or under-investigation product states without a fixed product state in the same current advisory
Direct vendor intelligence
Authoritative vendor CSAF and VEX advisories
Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.
2 current
SEVD-2021-285-05 · CSAF 2.0 · revision 1.0.0 · finalSchneider Electric CPCERTConext™ Advisor & Conext™ Control V2
3 known affected
The vendor explicitly identifies these products as affected by this CVE.
Schneider Electric Conext™ Advisor 2 Cloud 2.02 and below
Schneider Electric Conext™ Advisor 2 Gateway 1.28.45 and below
Schneider Electric Conext™ Control V2 Gateway 2.6 and below
Summary
A remote code execution vulnerability exists in the way that the Microsoft Server Message Block 3.1.1 (SMBv3) protocol handles certain requests, aka 'Windows SMBv3 Client/Server Remote Code Execution Vulnerability'.
Remediation
Version Windows 10 of the Microsoft Windows includes a fix for this vulnerability and is available for download here: • https://www.microsoft.com/en-in/software-download/windows10 • Reboot is required
SCA-2020-0003 · CSAF 2.0 · revision 3 · finalSICK PSIRTMEAC affected by Windows SMBv3 vulnerability
2 known affected
The vendor explicitly identifies these products as affected by this CVE.
SICK MEAC2012 with Microsoft Windows 10 Version 1903 & 1909
SICK MEAC300 with Microsoft Windows 10 Version 1903 & 1909
Summary
A remote code execution vulnerability exists in the way that the Microsoft Server Message Block 3.1.1 (SMBv3) protocol handles certain requests, aka ’Windows SMBv3 Client/Server Remote Code Execution Vulnerability’.
Remediation
This issue has been addressed in the Microsoft update for CVE-2020-0796.
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-2020-2283
CISA KEV mirrored by ENISA
A remote code execution vulnerability exists in the way that the Microsoft Server Message Block 3.1.1 (SMBv3) protocol handles certain requests, aka 'Windows SMBv3 Client/Server Remote Code Execution Vulnerability'.
EUVD state
Present in the current official mapping
Known exploitation
Recorded by ENISA since 10 Feb 2022. Evidence sources: cisa_kev.
ENISA score
10.0 · CVSS 3.1
Advisory evidence
1 linked advisory record
Recommended actionPatch only the product branches with a verified fix
CISA confirms exploitation in the wild and lists 2022-08-10 as the remediation due date. Verified remediation exists for at least one product or source, but 2 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.
Fix availability varies by product
01
What, why and how
A remote code execution vulnerability exists in the way that the Microsoft Server Message Block 3.1.1 (SMBv3) protocol handles certain requests. An attacker who successfully exploited the vulnerability could gain the ability to execute code on the target server or client.
What
A remote code execution vulnerability exists in the way that the Microsoft Server Message Block 3.1.1 (SMBv3) protocol handles certain requests. An attacker who successfully exploited the vulnerability could gain the ability to execute code on the target server or client.
Why
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
How
An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may execute code or commands in the affected security context.
What
A remote code execution vulnerability exists in the way that the Microsoft Server Message Block 3.1.1 (SMBv3) protocol handles certain requests. An attacker who successfully exploited the vulnerability could gain the ability to execute code on the target server or client.
Why
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
How
An attacker operating through a network path may attempt exploitation without authentication or user interaction. 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 2022-02-10. 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 → Improper Restriction of Operations within the Bounds of a Memory Buffer → execute code or commands in the affected security context
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Changed: exploitation can affect a different security authority
Weakness ?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer. The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
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:N/UI:N/S:C/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.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SChangedScope: The attack can affect a component governed by a different security 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.
Only matched European and national findings are included. Language selectors and unavailable sources are omitted.
ENISA EUVD · EUVD-2020-2283Known-exploited evidence recorded
A remote code execution vulnerability exists in the way that the Microsoft Server Message Block 3.1.1 (SMBv3) protocol handles certain requests, aka 'Windows SMBv3 Client/Server Remote Code Execution Vulnerability'.
Official EUVD record ↗Canadian Centre for Cyber Security · English · AL20-007Microsoft SMBv3 Critical Vulnerability
An Alert is used to raise awareness of a recently identified cyber threat that may impact cyber information assets, and to provide additional detection and mitigation advice to recipients. The Canadian Centre for Cyber Security ("Cyber Centre") is also available to provide additional assistance regarding the content of this Alert to recipients as requested.
Official advisory ↗Cyber Security Agency of Singapore · English · CSA-SB-20200318Security Bulletin 18 Mar 2020
The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 18 Mar 2020, published on 18 March 2020. Open the linked bulletin for the product, severity and reference information published in that issue.
Official advisory ↗CERT-FR · French · CERTFR-2021-AVI-772Multiples vulnérabilités dans les produits Schneider
Official advisory ↗CERT-FR · French · CERTFR-2020-AVI-224Multiples vulnérabilités dans Microsoft Windows
e atteinte à la confidentialité des données
et un contournement de la fonctionnalité de sécurité.
Solution
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des
correctifs (cf. section Documentation).
Documentation
Bulletin de sécurité Microsoft du 14 avril 2020
https://portal.msrc.microsoft.com/fr-FR/security-guidance
Référence CVE CVE-2020-0687
https://www.cve.org/CVERecord?id=CVE-2020-0687
Référence CVE CVE-2020-0699
https://www.cve.org/CVERecord?id=CVE-2020-0699
Référence CVE CVE-2020-0784
https://www.cve.org/CVERecord?id=CVE-2020-0784
Référence CVE CVE-2020-0794
https://www.cve.org/CVERecord?id=CVE-2020-0794
Référence CVE CVE-2020-0796
https://www.cve.org/CVERecord?id=CVE-2020-0796
Référence CVE CVE-2020-0821
https://www.cve.org/CVERecord?id=CVE-2020-0821
Référence CVE CVE-2020-0835
https://www.cve.org/CVERecord?id=CVE-2020-0835
Référence CVE CVE-2020-0888
https://www.cve.org/CVERecord?id=CVE-2020-0888
Référence CVE CVE-2020-0889
https://www.cve.org/CVERecord?id=CVE-2020-0889
Référence CVE CVE-2020-0907
https://www.cve.org/CVERecord?id=CVE-2020-0907
Référence CVE CVE-2020-0910
https://www.cve.org/CVERecord?id=CVE-2020-0910
Référence CVE CVE-2020-0913
https://www.cve.org/CVERecord?id=CVE-2020-0913
Référence CVE CVE-2020-0917
https://www.cve.org/CVERecord?id=CVE-2020-0917
Ré
Official advisory ↗CERT-FR · French · CERTFR-2020-AVI-149Vulnérabilité dans implémentation du protocole SMB par Microsoft
Une vulnérabilité a été découverte dans implémentation du protocole SMB
par Microsoft. Elle permet à un attaquant de provoquer une exécution de
code arbitraire à distance.
Official advisory ↗JVN iPedia · Japanese · JVNDB-2020-002334Microsoft SMBv3 の接続処理にリモートコード実行の脆弱性
Microsoft Server Message Block 3.1.1(SMBv3)プロトコルには、圧縮を用いた接続処理に脆弱性が存在します。細工したパケットをターゲットの SMBv3 サーバに送信したり、細工した SMBv3 サーバを構築して SMBv3 クライアントからアクセスさせたりすることで、リモートから任意のコードを実行できる可能性があります。
Official advisory ↗KISA KrCERT/CC · Korean · KNVD-5873최근 해킹 공격에 활용되는 취약점 보안 업데이트 권고
cat이 AJP request 메시지를 처리할 때, 메시지에 대한 처리가 미흡하여 발생하는 원격코드실행 취약점(CVE-2020-1938)[8]
ㅇ Apache Log4j에서 발생하는 원격코드 실행 취약점(CVE-2021-44228)[9]
ㅇ Atlassian Confluence Server 및 Data Center에서 OGNL 인젝션으로 인해 발생하는 원격코드실행 취약점(CVE-2021-26084)[10]
ㅇ BIG-IP에서 iControl REST 인증 미흡으로 인해 발생하는 불충분한 인가 취약점(CVE-2022-1388)[11]
ㅇ BIG-IP, BIG-IQ의 iControl REST 인터페이스에서 발생하는 원격 코드 실행 취약점(CVE-2021-22986)[12]
ㅇ Grafana 소프트웨어에서 경로탐색(Directory Traversal)으로 인해 발생하는 정보노출 취약점(CVE-2021-43798)[13]
ㅇ Inspur ClusterEngine V4.0에서 발생하는 원격 코드 실행 취약점(CVE-2020-21224)[14]
ㅇ Oracle WebLogic Server에서 발생하는 원격 코드 실행 취약점(CVE-2021-2109)[15]
ㅇ SMBv3 프로토콜이 조작된 패킷을 처리할 때 버퍼오버플로우로 인해 발생하는 원격코드실행 취약점(CVE-2020-0796)[16]
ㅇ Spring Cloud Gateway에서 발생하는 원격코드 실행 취약점(CVE-2022-22947)[17]
ㅇ Spring Core에서 발생하는 원격코드실행 취약점(CVE-2022-22965)[18]
ㅇ Spring Cloud Function에서 발생하는 원격코드실행 취약점(CVE-2022-22963)[18]
ㅇ VMware vCenter Server 원격 코드 실행 취약점(CVE-2021-21972)[19]
ㅇ VMware vCenter Server 에서 발생하는 파일 업로드 취약점(CVE-2021-22005)[20]
ㅇ VMware Workspace ONE Access와 Identity Manager에서 발생하는 원격 코드 실행 취약점(CVE-2022-22954)[21]
ㅇ WebLogic Server에서 안전하지 않은 역직렬화로 인해 발생하는 인증 우회 및 원격코드 실행 취약점(CVE-2019-2725)[22]
ㅇ WSO2에서 발생하는 원격코드 실행 취약점(CVE-2022-29464)[23]
##### □ 해결 방안
o 취약점별 참고사이트[1]~[23]에 명시되어 있는 내용을 참조하여 업데이트 수행
##### □ 기타 문의사항
o 한국인터넷진흥원 사이버민원센터: 국번없이 118
[참고사이트]
[1]
https://cve.mit
Official advisory ↗KISA KrCERT/CC · Korean · KNVD-5251주요 보안 취약점 업데이트를 재확인 하세요!!
#### 주요 보안 취약점 업데이트를 재확인 하세요!! 2021.01.05
##### □ 개요
o `20년 보안공지 된 취약점 중 업데이트 적용에 대한 재확인이 필요한 주요 취약점 리스트
※ 미국 NSA 발표, 랜섬웨어 유포에 악용된 취약점 등 이슈화 된 취약점 선정
##### □ 주요 내용
No
구분
CVE번호
제조사
제품명
취약점 종류
패치정보 및 보안공지
1
네트워크
CVE-2019-15978 외 10개
Cisco
Data Center Network Manager
명령어 삽입 취약점 등
[1]
2
네트워크
CVE-2019-19781
Citrix
ADC, Gateway,SDWAN-WANOP
임의코드 실행 취약점
[2]
3
네트워크
CVE-2020-11896
Cisco
ASR 500,5500
원격코드 실행 취약점
[3]
4
운영체제
CVE-2020-7247
-
OpenSMTPD
원격코드 실행 취약점
[4]
5
운영체제
CVE-2020-0674
MS
인터넷 익스플로러
원격코드 실행 취약점
[5]
6
운영체제
CVE-2020-0688
MS
윈도우 Exchange 서버
원격코드 실행 취약점
[6]
7
운영체제
CVE-2020-0796
MS
윈도우
SMBv3 원격코드 실행 취약점
[7]
8
운영체제
CVE-2019-14287
유닉스/리눅스
-
sudo 명령어 취약점
[8]
9
운영체제
CVE-2020-1472
MS
윈도우 서버
Netlogon 권한상승 취약점
[9]
10
가상화
CVE-2020-3943 외 2개
VMware
vRealize Operations
임의코드 실행 취약점 등
[10]
11
가상화
CVE-2020-3952
VMware
vCenter Server
정보유노출 취약점
[11]
12
웹서버
CVE-2020-1938
Apache
Tomcat
원격코드 실행 취약점
[12]
13
보안솔루션
CVE-2020-7845
지란지교시큐리티
스팸스나이퍼
버퍼오버플로우 취약점
[13]
14
보안솔루션
CVE-2020-25043 외 11개
Kaspersky 등 7개사
백신프로그램
임의파일 삭제 취약점 등
[14]
15
원격협업
CVE-2020-6109 외 1개
Zoom
Zoom
임의파일 쓰기 취약점
[15]
16
원격협업
CVE-2020-8207
Citrix
Workspace
권한 상승 취약점
[16]
17
원격협업
CVE-2020-13699
Team Viewer
TeamViewer
원격코드 실행 취약점
[17]
18
IoT
CVE-2020-10173 외 10개
LG 등 9개사
Official advisory ↗KISA KrCERT/CC · Korean · KNVD-5114MS SMBv3 프로토콜 취약점 보안 업데이트 권고
SMBv3 프로토콜이 조작된 패킷을 처리할 때 버퍼오버플로우로 인해 발생하는 원격코드실행 취약점(CVE-2020-0796) [1]
Official advisory ↗KISA KrCERT/CC · Korean · KNVD-5116MS SMBv3 프로토콜 취약점 주의 권고
SMBv3 프로토콜이 조작된 패킷을 처리할 때 버퍼오버플로우로 인해 발생하는 원격코드실행 취약점(CVE-2020-0796) [1]
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.
Use the product-specific evidence above. Patch only products with a verified fixed release, and keep every affected or under-investigation state without a matching fix in the remediation queue.
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 12 Mar 2020 · Last source change 1 Oct 2026, 19:56 UTC · CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer
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-2020-2283
Product sourceVendor CSAF · Schneider Electric CPCERT
Remediation sourceVendor CSAF · Schneider Electric CPCERT
CWE sourceCISA ADP
NVD statusNVD enriched
Core structured fields are present and their contributing authorities are shown above.
Affected versionsThe structured affected or fixed version information changed.
Before
Windows 10 Version 1903 for 32-bit Systems: unspecified; Windows 10 Version 1903 for x64-based Systems: unspecified; Windows 10 Version 1903 for ARM64-based Systems: unspecified; Windows Server, version 1903 (Server Core installation): unspecified; Windows 10 Version 1909 for 32-bit Systems: unspecified; Windows 10 Version 1909 for x64-based Systems: unspecified; Windows 10 Version 1909 for ARM64-based Systems: unspecified; Windows Server, version 1909 (Server Core installation): unspecified · Fixed: Version Windows 10 of the Microsoft Windows includes a fix for this vulnerability and is available for download here: • https://www.microsoft.com/en-in/software-download/windows10 • Reboot is required
After
Windows 10 Version 1903 for 32-bit Systems: unspecified; Windows 10 Version 1903 for x64-based Systems: unspecified; Windows 10 Version 1903 for ARM64-based Systems: unspecified; Windows Server, version 1903 (Server Core installation): unspecified; Windows 10 Version 1909 for 32-bit Systems: unspecified; Windows 10 Version 1909 for x64-based Systems: unspecified; Windows 10 Version 1909 for ARM64-based Systems: unspecified; Windows Server, version 1909 (Server Core installation): 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.
Affected versionsThe structured affected or fixed version information changed.
Before
Windows 10 Version 1903 for 32-bit Systems: unspecified; Windows 10 Version 1903 for x64-based Systems: unspecified; Windows 10 Version 1903 for ARM64-based Systems: unspecified; Windows Server, version 1903 (Server Core installation): unspecified; Windows 10 Version 1909 for 32-bit Systems: unspecified; Windows 10 Version 1909 for x64-based Systems: unspecified; Windows 10 Version 1909 for ARM64-based Systems: unspecified; Windows Server, version 1909 (Server Core installation): unspecified · Fixed: Version Windows 10 of the Microsoft Windows includes a fix for this vulnerability and is available for download here: • https://www.microsoft.com/en-in/software-download/windows10 • Reboot is required
After
Windows 10 Version 1903 for 32-bit Systems: unspecified; Windows 10 Version 1903 for x64-based Systems: unspecified; Windows 10 Version 1903 for ARM64-based Systems: unspecified; Windows Server, version 1903 (Server Core installation): unspecified; Windows 10 Version 1909 for 32-bit Systems: unspecified; Windows 10 Version 1909 for x64-based Systems: unspecified; Windows 10 Version 1909 for ARM64-based Systems: unspecified; Windows Server, version 1909 (Server Core installation): 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.
Affected versionsThe structured affected or fixed version information changed.
Before
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
Windows 10 Version 1903 for 32-bit Systems: unspecified; Windows 10 Version 1903 for x64-based Systems: unspecified; Windows 10 Version 1903 for ARM64-based Systems: unspecified; Windows Server, version 1903 (Server Core installation): unspecified; Windows 10 Version 1909 for 32-bit Systems: unspecified; Windows 10 Version 1909 for x64-based Systems: unspecified; Windows 10 Version 1909 for ARM64-based Systems: unspecified; Windows Server, version 1909 (Server Core installation): 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.
Affected versionsThe structured affected or fixed version information changed.
Before
Windows 10 Version 1903 for 32-bit Systems: unspecified; Windows 10 Version 1903 for x64-based Systems: unspecified; Windows 10 Version 1903 for ARM64-based Systems: unspecified; Windows Server, version 1903 (Server Core installation): unspecified; Windows 10 Version 1909 for 32-bit Systems: unspecified; Windows 10 Version 1909 for x64-based Systems: unspecified; Windows 10 Version 1909 for ARM64-based Systems: unspecified; Windows Server, version 1909 (Server Core installation): 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
Windows 10 Version 1903 for 32-bit Systems: unspecified; Windows 10 Version 1903 for x64-based Systems: unspecified; Windows 10 Version 1903 for ARM64-based Systems: unspecified; Windows Server, version 1903 (Server Core installation): unspecified; Windows 10 Version 1909 for 32-bit Systems: unspecified; Windows 10 Version 1909 for x64-based Systems: unspecified; Windows 10 Version 1909 for ARM64-based Systems: unspecified; Windows Server, version 1909 (Server Core installation): unspecified · Fixed: Version Windows 10 of the Microsoft Windows includes a fix for this vulnerability and is available for download here: • https://www.microsoft.com/en-in/software-download/windows10 • Reboot is required
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.