Out of bounds write in V8 in Google Chrome prior to 137.0.7151.55 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
Conclusion & alert: CVE-2025-5280 is rated Moderate Risk (60.3/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.64%). 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 | 2026-03-23 | 0.15% | 0.64% | +0.49% |
| 2 | 2026-01-24 | 0.15% | 0.15% | +0.00% |
| 3 | 2025-11-21 | — | 0.15% | — |
Full EPSS history (7 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 8.8 | 3.1 | HIGH |
|
2.8 | 5.9 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
end-of-life | CVE-2025-5280 end-of-life priority: Debian including 1 source packages (chromium), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 4, open 1. | https://security-tracker.debian.org/tracker/CVE-2025-5280 |
ubuntu
|
medium | CVE-2025-5280 medium priority: Ubuntu including 1 source packages (chromium-browser), 6 status rows across 6 suites (focal, jammy, noble, oracular, plucky, upstream): not-affected 4, DNE 1, released 1. | https://ubuntu.com/security/CVE-2025-5280 |
| URL | Tags |
|---|---|
| https://chromereleases.googleblog.com/2025/05/stable-channel-update-for-desktop_27.html | Release Notes |
| https://issues.chromium.org/issues/417169470 | Permissions Required |