# ASR 9902 vulnerabilities > ASR 9902 is made by Cisco. We track 21 published vulnerabilities in it, across 0 versions. 2 of them are on the list of flaws known to be exploited, the newest added on 3 March 2022. If you run ASR 9902, check your version against the exploited flaws below and patch those first. Canonical page: https://www.precursorintelligence.com/product/cisco/asr_9902 ## At a glance - **Made by:** [Cisco](https://www.precursorintelligence.com/vendors/cisco) - **Published vulnerabilities:** 21 - **Known to be exploited:** 2 - **Versions tracked:** 0 - **Most recently added to the known-exploited list:** [CVE-2017-12231](https://www.precursorintelligence.com/what-is/cve-2017-12231), 3 March 2022. We keep watching the list. ## Which ASR 9902 vulnerabilities are being exploited? 2 flaws are on the government list of vulnerabilities known to be exploited, newest first: - [CVE-2017-12231](https://www.precursorintelligence.com/what-is/cve-2017-12231): Cisco IOS Software Network Address Translation Denial-of-Service Vulnerability. High, CVSS 7.5, chance of use in 30 days 7.1%, known exploited since 3 March 2022. - [CVE-2017-12240](https://www.precursorintelligence.com/what-is/cve-2017-12240): Cisco IOS and IOS XE Software DHCP Remote Code Execution Vulnerability. Critical, CVSS 9.8, chance of use in 30 days 14%, known exploited since 3 March 2022. ## Which ASR 9902 flaws are most likely to be used? Ranked by the latest exploit-likelihood forecast (the chance each flaw is used in an attack in the next 30 days): - [CVE-2017-12240](https://www.precursorintelligence.com/what-is/cve-2017-12240): 14%, Critical (CVSS 9.8), known exploited - [CVE-2017-12231](https://www.precursorintelligence.com/what-is/cve-2017-12231): 7.1%, High (CVSS 7.5), known exploited - [CVE-2023-20066](https://www.precursorintelligence.com/what-is/cve-2023-20066): 1.7%, Medium (CVSS 6.5) - [CVE-2021-34718](https://www.precursorintelligence.com/what-is/cve-2021-34718): 1.6%, High (CVSS 8.1) - [CVE-2022-20714](https://www.precursorintelligence.com/what-is/cve-2022-20714): 1.5%, High (CVSS 8.6) - [CVE-2021-34737](https://www.precursorintelligence.com/what-is/cve-2021-34737): 1.3%, High (CVSS 7.5) - [CVE-2021-34720](https://www.precursorintelligence.com/what-is/cve-2021-34720): 1.3%, High (CVSS 8.6) - [CVE-2023-20049](https://www.precursorintelligence.com/what-is/cve-2023-20049): 1.0%, High (CVSS 7.5) - [CVE-2022-20677](https://www.precursorintelligence.com/what-is/cve-2022-20677): 0.6%, Medium (CVSS 6.7) - [CVE-2025-20142](https://www.precursorintelligence.com/what-is/cve-2025-20142): 0.5%, High (CVSS 8.6) ## Questions ### How many vulnerabilities does ASR 9902 have? We track 21 published vulnerabilities listed under the name ASR 9902, across 0 versions. The most recent ASR 9902 flaw added to the known-exploited list is CVE-2017-12231, on 3 March 2022. ### Which ASR 9902 vulnerabilities are being exploited? 2 are on the list of flaws known to be exploited. The most recently added are CVE-2017-12231 and CVE-2017-12240. ### How do I get alerts for ASR 9902? Create a Precursor Intelligence account and track ASR 9902. We match it against every published flaw, give each one a risk score from 0 to 100 and keep watching, so you hear about new ones as soon as we know, by email, in the app or by webhook. ## Running ASR 9902? Precursor Intelligence keeps checking for you: - **Tell us what you run.** Pick your software from a list, or let us work it out from your website. - **We match it to every flaw.** Over 400,000 published flaws, checked against your list. - **Ranked by real-world risk.** Every flaw gets a 0 to 100 risk score, kept up to date, led by evidence criminals are using it. - **Told as soon as we know.** An alert by email, in the app or by webhook to your own tools. Start free (no card, nothing to install): https://www.precursorintelligence.com/register Book a demo: https://www.precursorintelligence.com/contact