Is there a public exploit for CVE-2025-49176?

No public exploit for CVE-2025-49176 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2025-49176?

CVE-2025-49176 scores CVSS 7.3 (v3.1), rated high. EPSS puts the chance of exploitation in the next 30 days at 0.37%.

What does CVE-2025-49176 affect?

CVE-2025-49176 affects X.org, Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support, Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions, Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions, xwayland, Red Hat Enterprise Linux 8.2 Advanced Update Support, Red Hat Enterprise Linux 9.4 Extended Update Support.

7.3 High

A flaw was found in the Big Requests extension.

CVE-2025-49176

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.

Assessment

CVSS: 7.3 (v3.1)
Severity: High
EPSS: 0.37% chance of exploitation in the next 30 days
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 17 June 2025
Last updated: 4 November 2026
Affected: Red Hat · X.org · Red Hat Enterprise Linux 10 · Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION · Red Hat Enterprise Linux 7 Extended Lifecycle Support · Red Hat Enterprise Linux 7.7 Advanced Update Support
Assigner: redhat

CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H

At the source

EUVD (ENISA)

References

Community proofs of concept

No community proof of concept yet. If you have one for a published vulnerability and the right to share it, add it below — it will appear here once reviewed.

Submit a proof of concept

Only for publicly disclosed vulnerabilities, and only material from testing you were authorised to perform. This platform does not buy, sell, or broker exploits — see earning from vulnerability research for legitimate bounty programs. Submissions are reviewed before they appear. Text only; do not include live credentials, personal data, or anything targeting systems you are not permitted to test.

Title *

Proof of concept *

Write-up (optional)

Affected versions (optional)

Name or handle (optional)

References (optional, one URL per line)

Licence for your contribution *

Private contact (optional, never shown)

Before you submit * This vulnerability is already publicly disclosed (it has a published CVE). This material comes only from testing I was authorised to perform. I have the legal right to publish this content and am not breaching any agreement by doing so. It contains no live credentials, personal data, or anything targeting systems I am not authorised to test. I understand it will be reviewed before it appears publicly and may be rejected. I agree to the submission terms.

What is 8 + 7? *

Query this programmatically

Agents can read this through the MCP endpoint, or over HTTP:

curl https://cve.zerocrew.in/api/cve/CVE-2025-49176