Answer in brief
CVE-2020-0688 records a High severity vulnerability in CVE Program Container. The current sources mark it as known exploited. The current feed maps Microsoft/Microsoft Exchange Server 2010 Service Pack 3 Update Rollup 30 (generic), Microsoft/Microsoft Exchange Server 2013 (generic), Microsoft/Microsoft Exchange Server 2016 Cumulative Update 14 (generic), Microsoft/Microsoft Exchange Server 2016 Cumulative Update 15 (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2020-0688 records a High severity vulnerability in CVE Program Container. The current sources mark it as known exploited. The current feed maps Microsoft/Microsoft Exchange Server 2010 Service Pack 3 Update Rollup 30 (generic), Microsoft/Microsoft Exchange Server 2013 (generic), Microsoft/Microsoft Exchange Server 2016 Cumulative Update 14 (generic), Microsoft/Microsoft Exchange Server 2016 Cumulative Update 15 (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. Known-exploitation status makes exposure review time-sensitive. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Microsoft/Microsoft Exchange Server 2010 Service Pack 3 Update Rollup 30 (generic), Microsoft/Microsoft Exchange Server 2013 (generic), Microsoft/Microsoft Exchange Server 2016 Cumulative Update 14 (generic), Microsoft/Microsoft Exchange Server 2016 Cumulative Update 15 (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Microsoft/Microsoft Exchange Server 2010 Service Pack 3 Update Rollup 30generic | unspecified | Not reported |
| Microsoft/Microsoft Exchange Server 2013generic | Cumulative Update 23 | Not reported |
| Microsoft/Microsoft Exchange Server 2016 Cumulative Update 14generic | unspecified | Not reported |
| Microsoft/Microsoft Exchange Server 2016 Cumulative Update 15generic | unspecified | Not reported |
| Microsoft/Microsoft Exchange Server 2019 Cumulative Update 3generic | unspecified | Not reported |
| Microsoft/Microsoft Exchange Server 2019 Cumulative Update 4generic | unspecified | Not reported |
Published upstream
Feb 11, 2020
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 21, 2025
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
May 24, 2026
Added to CISA KEV
Nov 3, 2021
Evidence: source:kev:kev:kev:recordA remote code execution vulnerability exists in Microsoft Exchange software when the software fails to properly handle objects in memory, aka 'Microsoft Exchange Memory Corruption Vulnerability'.
Quoted source text, attributed separately from HOL analysis.
A CVSS score is not reported in the current record. Known-exploitation status makes exposure review time-sensitive. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Microsoft/Microsoft Exchange Server 2010 Service Pack 3 Update Rollup 30 (generic), Microsoft/Microsoft Exchange Server 2013 (generic), Microsoft/Microsoft Exchange Server 2016 Cumulative Update 14 (generic), Microsoft/Microsoft Exchange Server 2016 Cumulative Update 15 (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Microsoft/Microsoft Exchange Server 2010 Service Pack 3 Update Rollup 30generic | unspecified | Not reported |
| Microsoft/Microsoft Exchange Server 2013generic | Cumulative Update 23 | Not reported |
| Microsoft/Microsoft Exchange Server 2016 Cumulative Update 14generic | unspecified | Not reported |
| Microsoft/Microsoft Exchange Server 2016 Cumulative Update 15generic | unspecified | Not reported |
| Microsoft/Microsoft Exchange Server 2019 Cumulative Update 3generic | unspecified | Not reported |
| Microsoft/Microsoft Exchange Server 2019 Cumulative Update 4generic | unspecified | Not reported |
Published upstream
Feb 11, 2020
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 21, 2025
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
May 24, 2026
Added to CISA KEV
Nov 3, 2021
Evidence: source:kev:kev:kev:recordA remote code execution vulnerability exists in Microsoft Exchange software when the software fails to properly handle objects in memory, aka 'Microsoft Exchange Memory Corruption Vulnerability'.
Quoted source text, attributed separately from HOL analysis.