The X render (Xrender) extension in X.org X Window System 7.0, 7.1, and 7.2, with Xserver 1.3.0 and earlier, allows remote authenticated users to cause a denial of service (daemon crash) via crafted values to the (1) XRenderCompositeTrapezoids and (2) XRenderAddTraps functions, which trigger a divide-by-zero error.
Conclusion & alert: CVE-2007-2437 is rated High Exploit Risk (69.2/100): CVSS Medium severity, with high exploitation likelihood (EPSS 4.40%, 90th percentile). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| 29939 | exploit_db | edb | 2007-05-01 | Exploit-DB ↗ |
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 | 3.76% | 4.40% | +0.64% |
| 2 | 2026-02-06 | 3.43% | 3.76% | +0.32% |
| 3 | 2025-12-19 | — | 3.43% | — |
Full EPSS history (10 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.5 | 2.0 | MEDIUM |
|
5.1 | 6.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
unimportant | CVE-2007-2437 unimportant priority: Debian including 1 source packages (xorg-server), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2007-2437 |
gentoo
|
high | CVE-2007-2437: 1 GLSA(s) (201301-01), 14 atom(s) (dev-libs/nss, mail-client/mozilla-thunderbird, …); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2007-2437 |
redhat
|
— | — | https://access.redhat.com/security/cve/CVE-2007-2437 |
ubuntu
|
medium | CVE-2007-2437 medium priority: Ubuntu including 1 source packages (xorg-server), 4 status rows across 4 suites (dapper, edgy, feisty, upstream): ignored 3, needs-triage 1. | https://ubuntu.com/security/CVE-2007-2437 |
Red Hat does not consider a user assisted client crash such as this to be a security flaw.
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| x.org | x_window_system | 7.0 | cpe:2.3:a:x.org:x_window_system:7.0:*:*:*:*:*:*:* |
| x.org | x_window_system | 7.1 | cpe:2.3:a:x.org:x_window_system:7.1:*:*:*:*:*:*:* |
| x.org | x_window_system | 7.2 | cpe:2.3:a:x.org:x_window_system:7.2:*:*:*:*:*:*:* |
| x.org | xserver | <= 1.3.0 | cpe:2.3:a:x.org:xserver:*:*:*:*:*:*:*:* |