# RHSA-2025:8049: Security update for 2 packages

RHSA-2025:8049, released May 20, 2025, fixes 2 CVEs across 2 products. None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2025-8049
- Platform: Linux
- Released: May 20, 2025
- Priority: High (Closes CVE-2025-4918, high severity)
- CVEs: 2, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2025:8049

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [firefox](https://patchblox.com/security/data/product/linux/firefox.md) | RHEL 9 | 0:128.10.1-1.el9_6 |
| [firefox-x11](https://patchblox.com/security/data/product/linux/firefox-x11.md) | RHEL 9 | 0:128.10.1-1.el9_6 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2025-4918](https://patchblox.com/security/data/cve/CVE-2025-4918.md) | High | Out-of-bounds access when resolving Promise objects | 9.8 | 0.0952 |  |
| [CVE-2025-4919](https://patchblox.com/security/data/cve/CVE-2025-4919.md) | High | Out-of-bounds access when optimizing linear sums | 8.8 | 0.0912 |  |

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Data as of 2026-11-07T12:40:37Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo