---
title: "NIST 800-171 3.14.3 (SI.L2-3.14.3): Security Advisories"
description: "NIST SP 800-171 3.14.3 Security Advisories: 5 SPRS points, not allowed on a CMMC POA&M. The text, what assessors check and the evidence."
url: https://policycortex.com/nist-800-171/system-and-information-integrity/3.14.3
sealed: 2026-11-11
amended: 2026-11-11
register: nist-800-171/system-and-information-integrity/3.14.3
records: 7
digest: sha3:61a3e6a592fbae5304ee7173ee994d9ee3a5af0c2a6971ace9bbed64b26e3fc6
---

# NIST 800-171 3.14.3 (SI.L2-3.14.3): Security Advisories

NIST 800-171 / System and Information Integrity / 3.14.3

"Monitor system security alerts and advisories and take action in response." ([NIST SP 800-171 Rev. 2, requirement 3.14.3](https://doi.org/10.6028/NIST.SP.800-171r2))

CMMC Level 2 practice SI.L2-3.14.3.

## What 3.14.3 means in practice

Someone watches security alerts and advisories, from vendors, from CISA and from your own tools, decides what each one means for your systems, and acts on it. Keep evidence of the sources you follow and the actions you took.

## SPRS points and the CMMC POA&M

- **CMMC Level 2 practice**: SI.L2-3.14.3
- **SPRS points**: 5 points. When it is not met, the DoD Assessment Methodology subtracts 5 from the score of 110.
- **CMMC POA&M**: Not allowed. It is worth 5 points, and 32 CFR 170.21(a)(2)(ii) admits only requirements worth 1 point, with one exception: 3.13.11 when encryption is used but not FIPS validated.

Sources: [NIST SP 800-171 DoD Assessment Methodology, version 1.2.1 (June 24, 2020), Annex A](https://www.acq.osd.mil/asda/dpc/cp/cyber/docs/safeguarding/NIST-SP-800-171-Assessment-Methodology-Version-1.2.1-6.24.2020.pdf); [32 CFR 170.21, Plan of Action and Milestones requirements](https://www.ecfr.gov/current/title-32/section-170.21).

## What an assessor checks for 3.14.3

NIST SP 800-171A gives 3 determination statements for 3.14.3, each found satisfied or other than satisfied. Determine if:

- 3.14.3[a] response actions to system security alerts and advisories are identified.
- 3.14.3[b] system security alerts and advisories are monitored.
- 3.14.3[c] actions in response to system security alerts and advisories are taken.

[NIST SP 800-171A (June 2018), assessment objectives for 3.14.3](https://doi.org/10.6028/NIST.SP.800-171A)

## Evidence that shows 3.14.3 is met

- The sources of alerts and advisories you subscribe to.
- The procedure for assessing them and responding.
- Records of advisories received and the actions taken.

## How PolicyCortex gathers the evidence

PolicyCortex reads this evidence with the collectors below, read only, and grades 3.14.3 from it. Each line says what the product checks.

- **Microsoft Defender for Cloud: Secure score and security contacts.** Checks that Microsoft Defender for Cloud has a security contact set to receive alerts.
- **Microsoft Defender for Cloud: Security alerts.** Checks that no high or critical Defender security alert stays unresolved.

## Related pages

- **Calculator**: [SPRS score calculator: mark 3.14.3 and the other 109 requirements and see the score.](https://policycortex.com/sprs-score-calculator#family-SI)
- **Sample package**: [Sample package: an SSP, a POA&M and an evidence chain the product generated from demonstration data.](https://policycortex.com/sample-package)
- **Family**: [All 7 System and Information Integrity requirements (3.14).](https://policycortex.com/nist-800-171/system-and-information-integrity)
- **Previous**: [3.14.2: Malware Protection](https://policycortex.com/nist-800-171/system-and-information-integrity/3.14.2)
- **Next**: [3.14.4: Malware Updates](https://policycortex.com/nist-800-171/system-and-information-integrity/3.14.4)
- **All requirements**: [All 110 NIST SP 800-171 requirements, by family.](https://policycortex.com/nist-800-171)

Meet the requirement once. Keep the evidence current. [Request Access](https://app.policycortex.com/auth?mode=request-access) · [Book a call](https://policycortex.com/book)

## Register colophon

| Seq | Label | SHA3-256 | Prev |
|---|---|---|---|
| REC 0000 | REQUIREMENT | 201779c12b2e | 52b091d59c30 |
| REC 0001 | MEANING | cc828d3a89ae | 201779c12b2e |
| REC 0002 | POINTS AND POA&M | 6a8fd0497f33 | cc828d3a89ae |
| REC 0003 | ASSESSMENT OBJECTIVES | 18c4e4dc9e98 | 6a8fd0497f33 |
| REC 0004 | EVIDENCE | 236b4184f4dd | 18c4e4dc9e98 |
| REC 0005 | COLLECTORS | 2663891a3c62 | 236b4184f4dd |
| REC 0006 | RELATED | 61a3e6a592fb | 2663891a3c62 |

Head sha3:61a3e6a592fbae5304ee7173ee994d9ee3a5af0c2a6971ace9bbed64b26e3fc6. Each digest is SHA3-256 over the previous digest, the register key, the record label, and the record copy; a second party can recompute it from this document.