rendering/RenderBox.cpp in WebCore in WebKit before r86862, as used in Google Chrome before 11.0.696.71, does not properly render floats, which allows remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors that lead to a "stale pointer."
Conclusion & alert: CVE-2011-1804 is rated Moderate Risk (54.9/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.49%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 1.27% | 1.49% | +0.22% |
| 2 | 2025-03-30 | 1.66% | 1.27% | -0.38% |
| 3 | 2025-03-29 | — | 1.66% | — |
Full EPSS history (7 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
ubuntu
|
low | CVE-2011-1804 low priority: Ubuntu including 5 source packages (chromium-browser, qt4-x11, qtwebkit-source, webkit, webkitgtk), 79 status rows across 17 suites (dapper, hardy, lucid, maverick, natty, oneiric, precise, quantal, raring, saucy, trusty, upstream, utopic, vivid, wily, xenial, yakkety): not-affected 25, ignored 24, DNE 19, released 7, needs-triage 4. | https://ubuntu.com/security/CVE-2011-1804 |