What is RHSA-2025:7903?

RHSA-2025:7903 is a security advisory published by Red Hat Product Security with High severity. Red Hat Security Advisory: kernel security update

Which CVE IDs does RHSA-2025:7903 cover?

RHSA-2025:7903 covers the following CVE IDs: CVE-2025-37749, CVE-2025-21756, CVE-2025-21966. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of RHSA-2025:7903?

RHSA-2025:7903 has a CVSS v3 base score of 7.8, published by Red Hat Product Security.

RHSA-2025:7903HighCVSS 7.8

Red Hat Security Advisory: kernel security update

Vendor

Red Hat Product Security

Published

May 19, 2025

Last Modified

June 30, 2026

🔗 CVE IDs covered (3)

CVE-2025-37749 →CVE-2025-21756 →CVE-2025-21966 →

📋 Description

CVE-2025-21756 — kernel: vsock: Keep the binding until socket destruction CVE-2025-21966 — kernel: dm-flakey: Fix memory corruption in optional corrupt_bio_byte feature CVE-2025-37749 — kernel: net: ppp: Add bound checking for skb data on ppp_sync_txmung

🔗 References (6)

selfhttps://access.redhat.com/errata/RHSA-2025:7903
externalhttps://access.redhat.com/security/updates/classification/#important
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2348609
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2356605
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2363332
selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2025/rhsa-2025_7903.json