# net: stmmac: xgmac2: disable RBUE in default RX interrupt mask

CVE record · `CVE-2026-93830`

- **Identifiers:** `CVE-2026-93830`
- **State:** Confirmed
- **Severity:** CVSS 7.5 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 24 Sept 2026
- **Updated:** 3 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 24 Sept 2026, 16:03 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Affected products, as the CNA wrote them

- Vendor: Linux. Product: Linux.
  - affected: `d6ddfacd95c79d43465d4a85dffb1c9beca343a9 to before 8c9d57b5dc098b84631d0b3559c84c499ea2170a` (git)
  - affected: `d6ddfacd95c79d43465d4a85dffb1c9beca343a9 to before 7a10e54e42a8f73a8d731f5a281fc06bb41b9250` (git)
  - affected: `d6ddfacd95c79d43465d4a85dffb1c9beca343a9 to before 6b3b91433d5f4eae6865cdaa96f40cd67849e1f6` (git)
  - affected: `d6ddfacd95c79d43465d4a85dffb1c9beca343a9 to before 74dbb85a6a254b5fc1f265a6cd61b2ba9d9221d7` (git)
  - affected: `d6ddfacd95c79d43465d4a85dffb1c9beca343a9 to before 0b1a5d3647ce07c27a9fffefc11a8cbf7d7b25ce` (git)
  - affected: `d6ddfacd95c79d43465d4a85dffb1c9beca343a9 to before 87e2826ed2058747ddf014c082569a46bfadd96b` (git)
  - affected: `d6ddfacd95c79d43465d4a85dffb1c9beca343a9 to before d3265c19b35d036bba327b36b5366bee76b0157c` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `4.19`
  - unaffected: `before 4.19` (semver)
  - unaffected: `5.10.271 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.222 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.189 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.158 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.111 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.53 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2 to *, inclusive` (original_commit_for_fix)
  - Other versions: affected

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

- 7.5 High, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`, from CNA (Linux)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0049, the 42nd percentile, on 12 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the CVE Program, published 24 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-93830](https://www.cve.org/CVERecord?id=CVE-2026-93830)
- [NVD: CVE-2026-93830](https://nvd.nist.gov/vuln/detail/CVE-2026-93830)

### References from the CNA

- <https://git.kernel.org/stable/c/8c9d57b5dc098b84631d0b3559c84c499ea2170a>
- <https://git.kernel.org/stable/c/7a10e54e42a8f73a8d731f5a281fc06bb41b9250>
- <https://git.kernel.org/stable/c/6b3b91433d5f4eae6865cdaa96f40cd67849e1f6>
- <https://git.kernel.org/stable/c/74dbb85a6a254b5fc1f265a6cd61b2ba9d9221d7>
- <https://git.kernel.org/stable/c/0b1a5d3647ce07c27a9fffefc11a8cbf7d7b25ce>
- <https://git.kernel.org/stable/c/87e2826ed2058747ddf014c082569a46bfadd96b>
- <https://git.kernel.org/stable/c/d3265c19b35d036bba327b36b5366bee76b0157c>

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2026-93830>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-93830/>. Everything for agents: <https://agentprime.io/llms.txt>.