Answer in brief
CVE-2023-4863 records a High severity (CVSS 8.8) vulnerability in CVE Program Container. The current sources mark it as known exploited. The current feed maps libwebp-sys (crates.io), libwebp-sys2 (crates.io), webp (crates.io), Google/Chrome (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.
CVSS is 8.8. 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 libwebp-sys (crates.io), libwebp-sys2 (crates.io), webp (crates.io), Google/Chrome (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| libwebp-syscrates.io | >=0 <0.9.3 | 0.9.3 |
| libwebp-sys2crates.io | >=0 <0.1.8 | 0.1.8 |
| webpcrates.io | >=0 <0.2.6 | 0.2.6 |
| 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 |
| github.com/chai2010/webpgo | >=1.1.2 <1.4.0 | 1.4.0 |
| github.com/chai2010/webpgo | >=0 <0.0.0-20250406010349-76805d5a8860 | 0.0.0-20250406010349-76805d5a8860 |
| github.com/chai2010/webpgo | >=0.0.0 <1.1.2-0.20250406010349-76805d5a8860 | 1.1.2-0.20250406010349-76805d5a8860 |
| electronnpm | >=22.0.0 <22.3.24 | 22.3.24 |
| electronnpm | >=24.0.0 <24.8.3 | 24.8.3 |
| electronnpm | >=25.0.0 <25.8.1 | 25.8.1 |
| electronnpm | >=26.0.0 <26.2.1 | 26.2.1 |
| electronnpm | >=27.0.0-beta.1 <27.0.0-beta.2 | 27.0.0-beta.2 |
| magick.net-q16-anycpunuget | >=0 <13.3.0 | 13.3.0 |
| magick.net-q16-hdri-anycpunuget | >=0 <13.3.0 | 13.3.0 |
| magick.net-q16-x64nuget | >=0 <13.3.0 | 13.3.0 |
| magick.net-q8-anycpunuget | >=0 <13.3.0 | 13.3.0 |
| magick.net-q8-openmp-x64nuget | >=0 <13.3.0 | 13.3.0 |
| magick.net-q8-x64nuget | >=0 <13.3.0 | 13.3.0 |
| SkiaSharpnuget | >=2.0.0 <2.88.6 | 2.88.6 |
| pillowpypi | >=0 <10.0.1 | 10.0.1 |
Published upstream
Sep 12, 2023
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 10, 2026
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.