Is there a public exploit for CVE-2025-49177?

No public exploit for CVE-2025-49177 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-2025-49177?

CVE-2025-49177 scores CVSS 6.1 (v3.1), rated medium. EPSS puts the chance of exploitation in the next 30 days at 0.44%.

What does CVE-2025-49177 affect?

CVE-2025-49177 affects Red Hat, X.org Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9.4 Extended Update Support, Red Hat Enterprise Linux 10, xwayland.

6.1 Medium

A flaw was found in the XFIXES extension.

CVE-2025-49177

A flaw was found in the XFIXES extension. The XFixesSetClientDisconnectMode handler does not validate the request length, allowing a client to read unintended memory from previous requests.

Assessment

CVSS: 6.1 (v3.1)
Severity: Medium
EPSS: 0.44% 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 9 · Red Hat Enterprise Linux 9.4 Extended Update Support · xwayland
Assigner: redhat

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

At the source

EUVD (ENISA)

References

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