CVE-2018-0174 Cisco IOS XE Software: software flaw
In plain words: A mistake in the software that attackers have found a way to abuse. Depends on the product — see the description and the vendor advisory.
Confirmed exploited by CISA on · US federal patch deadline Mar 17, 2022
What to do
- Install Cisco's security update for IOS XE Software. If no update exists, follow the vendor's workaround or stop using the product until one ships.
- Install system updates the day they come out — most phone zero-days are fixed in a point release.
- Restart your phone every few days; some spyware does not survive a reboot.
- If you are a journalist, activist, lawyer, politician or executive, turn on Lockdown Mode (iPhone) or Advanced Protection (Android).
Who is affected
Could reach you. This one is aimed at devices or apps of the kind people own.
What's at risk: Messages, photos, location, microphone and camera. The most serious ones are "zero-click": no tap needed from the owner. They are usually used as spyware against a small number of chosen people.
The details
- Official name
- Cisco IOS Software and Cisco IOS XE Software Improper Input Validation Vulnerability
- Product
- Cisco IOS XE Software
- CISA description
- A vulnerability in the DHCP option 82 encapsulation functionality of Cisco IOS Software and Cisco IOS XE Software could allow for denial-of-service (DoS).
- Type of flaw
- Software flaw (CWE-20)
- Confirmed exploited
- Mar 3, 2022
- US federal patch deadline
- Mar 17, 2022
Ask Cleus about it
Ask about a vulnerability, an update, a weird message, or the news. Plain-word answers, free, no account.
Answering about CVE-2018-0174 ·
Questions about CVE-2018-0174
Is CVE-2018-0174 being exploited?
Yes. CISA added CVE-2018-0174 to its Known Exploited Vulnerabilities catalog on Mar 3, 2022, which means there is reliable evidence of real-world attacks.
How do I fix CVE-2018-0174?
Install Cisco's security update for IOS XE Software. If no update exists, follow the vendor's workaround or stop using the product until one ships. Install system updates the day they come out — most phone zero-days are fixed in a point release.
Am I affected by CVE-2018-0174?
Only if you use Cisco IOS XE Software. This one is aimed at devices or apps of the kind people own.