# net: sched: fix ets qdisc OOB Indexing

CVE record · `CVE-2025-21692`

- **Identifiers:** `CVE-2025-21692`
- **State:** Confirmed
- **Severity:** CVSS 7.8 High
- **Critical:** No
- **CNA:** Linux
- **Weakness (CWE):** [CWE-129](https://cwe.mitre.org/data/definitions/129.html)
- **Tags:** [CWE-129](https://agentprime.io/advisories/tag/cwe-129.md)
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 10 Feb 2025
- **Updated:** 15 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 10 Feb 2025, 15:58 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: `dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 to before 03c56665dab1f4ac844bc156652d50d639093fa5` (git)
  - affected: `dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 to before bcf0d815e728a3a304b50455b32a3170c16e1eaa` (git)
  - affected: `dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 to before 1332c6ed446be787f901ed1064ec6a3c694f028a` (git)
  - affected: `dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 to before f4168299e553f17aa2ba4016e77a9c38da40eb1d` (git)
  - affected: `dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 to before 997f6ec4208b23c87daf9f044689685f091826f7` (git)
  - affected: `dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 to before f6b0f05fbfa4044f890e8a348288c0d9a20bd1d0` (git)
  - affected: `dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 to before d62b04fca4340a0d468d7853bd66e511935a18cb` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.6`
  - unaffected: `before 5.6` (semver)
  - unaffected: `5.10.234 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.178 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.128 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.75 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.12 to 6.12.*, inclusive` (semver)
  - unaffected: `6.13.1 to 6.13.*, inclusive` (semver)
  - unaffected: `6.14 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

- 7.8 High, CVSS 3.1: `CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`, from CNA (Linux) (used for this record)
- 7.8 High, CVSS 3.1: `CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`, from ADP (CISA-ADP)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0062, the 49th percentile, on 8 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 10 Feb 2025. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2025-21692](https://www.cve.org/CVERecord?id=CVE-2025-21692)
- [NVD: CVE-2025-21692](https://nvd.nist.gov/vuln/detail/CVE-2025-21692)

### References from the CNA

- <https://git.kernel.org/stable/c/03c56665dab1f4ac844bc156652d50d639093fa5>
- <https://git.kernel.org/stable/c/bcf0d815e728a3a304b50455b32a3170c16e1eaa>
- <https://git.kernel.org/stable/c/1332c6ed446be787f901ed1064ec6a3c694f028a>
- <https://git.kernel.org/stable/c/f4168299e553f17aa2ba4016e77a9c38da40eb1d>
- <https://git.kernel.org/stable/c/997f6ec4208b23c87daf9f044689685f091826f7>
- <https://git.kernel.org/stable/c/f6b0f05fbfa4044f890e8a348288c0d9a20bd1d0>
- <https://git.kernel.org/stable/c/d62b04fca4340a0d468d7853bd66e511935a18cb>

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-2025-21692>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2025-21692/>. Everything for agents: <https://agentprime.io/llms.txt>.