---
title: "Security digest: December 21, 2023"
url: https://erroneo.us/security/2023-12-21/
description: "December 21, 2023 vulnerability digest: 2 CISA KEV additions (FXC, QNAP); 2 critical advisories (npm, Maven). What to patch and who can relax."
type: security-digest-day
section: "Security Digest"
date_published: 2023-12-21
date_modified: 2023-12-21
publisher: erroneo.us
author: erroneo.us Security Desk
license: All rights reserved. Quote with attribution and a link.
---

# Security digest: December 21, 2023

2 known exploited (cisa kev) additions and 2 critical advisories.

## Take stock

- Do you run any of these? FXC AE1021, AE1021PE, QNAP VioStor NVR. They are being exploited in the wild (CISA KEV). Patch or mitigate if you do; CISA’s federal deadline is 2024-01-11.
- npm: 1 critical advisory ( bsock ). Check with npm audit (or: npm ls <package>) .
- Maven: 1 critical advisory ( org.apache.iotdb:iotdb-parent ). Check with mvn dependency:tree -Dincludes=<groupId>:<artifactId> .
- None of it touches your stack? Then there is nothing to do today. That is a result, not a failure to read carefully.

## Known exploited (CISA KEV)

- [CVE-2023-49897](https://erroneo.us/security/cve/CVE-2023-49897/index.md) FXC AE1021, AE1021PE: FXC AE1021, AE1021PE OS Command Injection Vulnerability (CISA due 2024-01-11)
- [CVE-2023-47565](https://erroneo.us/security/cve/CVE-2023-47565/index.md) QNAP VioStor NVR: QNAP VioStor NVR OS Command Injection Vulnerability (CISA due 2024-01-11)

## Critical advisories

- [CVE-2023-50475](https://erroneo.us/security/cve/CVE-2023-50475/index.md) bsock uses weak hashing algorithms — npm bsock <= 0.1.11 → no fix
- [CVE-2023-51656](https://erroneo.us/security/cve/CVE-2023-51656/index.md) Apache IoTDB: Unsafe deserialize map in Sync Tool — Maven org.apache.iotdb:iotdb-parent >= 0.13.0, < 1.2.2 → 1.2.2

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Source page: https://erroneo.us/security/2023-12-21/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt