In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE This data originates from userspace and is used in buffer offset calculations which could potentially overflow causing an out-of-bounds access.
Conclusion & alert: CVE-2025-40277 is rated Low Risk (25.4/100): low exploitation likelihood (EPSS 0.34%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
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 | 0.06% | 0.34% | +0.27% |
| 2 | 2026-01-18 | 0.02% | 0.06% | +0.04% |
| 3 | 2025-12-07 | — | 0.02% | — |
Full EPSS history (3 records total)
CVSS metrics for this CVE.
No CVSS data in dataset for this CVE.
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2025-40277 not yet assigned priority: Debian including 2 source packages (linux, linux-6.1), 6 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 6. | https://security-tracker.debian.org/tracker/CVE-2025-40277 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2025-40277 |
suse
|
medium | CVE-2025-40277 severity moderate: SUSE including 569 source package names (13.2-9.1:libsystemd0-254.23-1.1, 13.2-9.1:libudev1-254.23-1.1, …), 1213 product×package rows across 211 product lines (Container suse/sl-micro/6.0/baremetal-os-container, Container suse/sl-micro/6.0/base-os-container, … (211 product lines)): Fixed 930, Known Affected 231, Known Not Affected 27, First Fixed 25. | https://www.suse.com/security/cve/CVE-2025-40277/ |
ubuntu
|
medium | CVE-2025-40277 medium priority: Ubuntu including 157 source packages (linux, linux-allwinner-5.19, …), 1405 status rows across 9 suites (bionic, focal, jammy, noble, plucky, questing, trusty, upstream, xenial): DNE 1010, ignored 181, released 157, needed 49, not-affected 5, pending 3. | https://ubuntu.com/security/CVE-2025-40277 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| No affected products in dataset. | |||