CVE-2018-14933
CVE-2018-14933 is a security flaw in NUUO NVRmini Devices. Attackers can run commands on NUUO NVRmini Devices. The US Cybersecurity and Infrastructure Security Agency (CISA) added it to its catalog of flaws known to be used in attacks on 18 Dec 2024.[1]
NUUO NVRmini Devices is business software or equipment. Most families won’t have it, but attackers break into it to get inside companies, and from there to what those companies hold about their customers, patients and staff. NUUO has published a fix or advice.
Description
CISA calls it an OS command injection in NUUO NVRmini Devices. In its words: “NUUO NVRmini devices contain an OS command injection vulnerability. This vulnerability allows remote command execution via shell metacharacters in the uploaddir parameter for a writeuploaddir command.”[1]
The underlying weakness is OS command injection (CWE-78), in MITRE’s list of common software weaknesses.[2]
It scores 9.8 out of 10 on the Common Vulnerability Scoring System, which rates it critical, scored by NVD using CVSS 3.1.[2]
Affected versions
NVD’s record doesn’t list version ranges for it; NUUO’s advisory has them[3]. CISA names the product as NUUO NVRmini Devices.
Most families won’t have NUUO NVRmini Devices; it’s for whoever looks after IT at work.
Exploitation
CISA added it to its catalog of known exploited vulnerabilities on 18 Dec 2024, 2,328 days after it was made public. CISA lists a flaw only when it has reliable evidence of it being exploited, and gave US federal agencies until 8 Jan 2025 to fix it.[1]
FIRST’s Exploit Prediction Scoring System, which estimates how likely a flaw is to be used in attacks in the next 30 days from what it sees across the internet, puts it at 95%. That’s in the top 1% of the flaws it scores.[4]
CISA assesses it as automatable: attackers can run it against many targets at once.
CISA doesn’t say who was attacked, or how.
Fix
NUUO has published a fix or advice.[3] CISA’s required action: “The impacted product is end-of-life (EoL) and/or end-of-service (EoS).”[1]
- Check whether you use it.NUUO NVRmini Devices is business software or equipment, so most families won’t have it. If you run a business, or work from home on company equipment, ask whoever looks after your IT.
- Send this page to your IT person.Ask them to confirm it’s fixed, or not in use. CISA gave US government agencies until 8 Jan 2025 to fix it.
- If it can’t be fixed, take it offline.CISA’s advice when there’s no fix is to stop using the product, or take it off the internet, until there is one.
You can’t fix someone else’s server, but you can watch for what follows a break-in like this: a breach notice, a password reset you didn’t ask for, or a scam message that knows things it shouldn’t. HARD watches for those for you and your family.
Timeline
| Date | Event |
|---|---|
| The flaw is made public in the National Vulnerability Database, with a severity score of 9.8.[2] | |
| CISA adds it to its catalog of flaws known to be used in attacks.[1] | |
| CISA’s deadline for US government agencies to fix it.[1] | |
| FIRST puts the odds of it being used in attacks in the next 30 days at 95%.[4] |
See also
Other NUUO flaws
- CVE-2022-23227, NUUO NVRmini2 Devices: missing authentication ·
Other OS command injection flaws
- CVE-2026-110447, Collabora Online – Built-in CODE Server: online – built-in CODE server OS command injection ·
- CVE-2026-106931, EG Secure Solutions SiteGuard Server Edition: OS command injection ·
- CVE-2026-83549, SonicWall SMA1000 Appliances: OS command injection ·
- CVE-2026-49869, Kestra OSS: OSS OS command injection ·
- CVE-2026-73570, Synacor Zimbra Collaboration Suite (ZCS): OS command injection ·
Added the same day
- CVE-2022-23227, NUUO NVRmini2 Devices: missing authentication ·
- CVE-2021-40407, Reolink RLC-410W IP Camera: OS command injection ·
- CVE-2019-11001, Reolink Multiple IP Cameras: OS command injection ·
References
- ^ Cybersecurity and Infrastructure Security Agency. “NUUO NVRmini Devices OS Command Injection Vulnerability”. Known Exploited Vulnerabilities Catalog, added 18 Dec 2024.
- ^ National Institute of Standards and Technology. “CVE-2018-14933 Detail”. National Vulnerability Database, published 4 Aug 2018.
- ^ NUUO. Advisories and fixes: nuuo.com.
- ^ FIRST. “Exploit Prediction Scoring System”. EPSS 0.948, percentile 99.9, 31 Oct 2026.
- CVE Program. “CVE-2018-14933”. The official CVE record.
This article is built from CISA’s catalog (version 2026.10.30), NVD’s record and FIRST’s scores, kept in HARD’s database and checked every morning. The plain English is HARD’s.