A flaw was found in the Big Requests extension. The request length is multiplied by 4 before checking against the maximum allowed size, potentially causing an integer overflow and bypassing the size check.
Conclusion & alert: CVE-2025-49176 is rated Moderate Risk (46.8/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.27%). 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 | 2026-05-11 | 0.22% | 0.27% | +0.04% |
| 2 | 2026-04-13 | 0.06% | 0.22% | +0.16% |
| 3 | 2026-02-20 | — | 0.06% | — |
Full EPSS history (4 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.3 | 3.1 | HIGH |
|
1.8 | 5.5 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2025-49176: 2 source package rows (xorg-server, xwayland); 4 state rows across 2 repos (3.22-community, edge-community); fixed 4, open 0. | https://security.alpinelinux.org/vuln/CVE-2025-49176 |
debian
|
not yet assigned | CVE-2025-49176 not yet assigned priority: Debian including 2 source packages (xorg-server, xwayland), 9 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 7, open 2. | https://security-tracker.debian.org/tracker/CVE-2025-49176 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2025-49176 |
suse
|
high | CVE-2025-49176 severity important: SUSE including 319 source package names (21.1-46.1:xorg-x11-server-21.1.11-150600.5.12.1, 21.1-46.1:xorg-x11-server-Xvfb-21.1.11-150600.5.12.1, …), 405 product×package rows across 56 product lines (Container suse/kiosk/xorg, Image SLES15-SP4-SAP, … (56 product lines)): Known Affected 231, Fixed 174. | https://www.suse.com/security/cve/CVE-2025-49176/ |
ubuntu
|
medium | CVE-2025-49176 medium priority: Ubuntu including 7 source packages (xorg, xorg-hwe-16.04, …), 53 status rows across 10 suites (bionic, focal, jammy, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 20, released 17, not-affected 13, needs-triage 3. | https://ubuntu.com/security/CVE-2025-49176 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| No affected products in dataset. | |||