Answer in brief
CVE-2023-4863 records a High severity vulnerability in CVE Program Container. The current sources mark it as known exploited. The current feed maps Google/Chrome (generic), Google/libwebp (generic). 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-2023-4863 records a High severity vulnerability in CVE Program Container. The current sources mark it as known exploited. The current feed maps Google/Chrome (generic), Google/libwebp (generic). 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 Google/Chrome (generic), Google/libwebp (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Google/Chromegeneric | >=116.0.5845.187 <116.0.5845.187 | 116.0.5845.187 |
| Google/libwebpgeneric | >=1.3.2 <1.3.2 | 1.3.2 |
Published upstream
Sep 12, 2023
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
Sep 13, 2023
Evidence: source:kev:kev:kev:recordHeap buffer overflow in libwebp in Google Chrome prior to 116.0.5845.187 and libwebp 1.3.2 allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page. (Chromium security severity: Critical)
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 Google/Chrome (generic), Google/libwebp (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Google/Chromegeneric | >=116.0.5845.187 <116.0.5845.187 | 116.0.5845.187 |
| Google/libwebpgeneric | >=1.3.2 <1.3.2 | 1.3.2 |
Published upstream
Sep 12, 2023
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
Sep 13, 2023
Evidence: source:kev:kev:kev:recordHeap buffer overflow in libwebp in Google Chrome prior to 116.0.5845.187 and libwebp 1.3.2 allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page. (Chromium security severity: Critical)
Quoted source text, attributed separately from HOL analysis.