# Single Sign-on vulnerabilities > Single Sign-on is made by Red Hat. We track 101 published vulnerabilities in it, across 17 versions. 1 of them is on the list of flaws known to be exploited, the newest added on 10 October 2023. If you run Single Sign-on, check your version against the exploited flaws below and patch those first. Canonical page: https://www.precursorintelligence.com/product/redhat/single_sign-on ## At a glance - **Made by:** [Red Hat](https://www.precursorintelligence.com/vendors/redhat) - **Published vulnerabilities:** 101 - **Known to be exploited:** 1 - **Versions tracked:** 17 - **Most recently added to the known-exploited list:** [CVE-2023-44487](https://www.precursorintelligence.com/what-is/cve-2023-44487), 10 October 2023. We keep watching the list. ## Which versions of Single Sign-on do the exploited flaws hit? Each exploited flaw lists the versions it affects, as published. - [CVE-2023-44487](https://www.precursorintelligence.com/what-is/cve-2023-44487) (HTTP/2 Rapid Reset Attack Vulnerability): 7.0 ## Which Single Sign-on vulnerabilities are being exploited? 1 flaw is on the government list of vulnerabilities known to be exploited, newest first: - [CVE-2023-44487](https://www.precursorintelligence.com/what-is/cve-2023-44487): HTTP/2 Rapid Reset Attack Vulnerability. High, CVSS 7.5, chance of use in 30 days >99%, known exploited since 10 October 2023. ## Which Single Sign-on 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-2023-44487](https://www.precursorintelligence.com/what-is/cve-2023-44487): >99%, High (CVSS 7.5), known exploited - [CVE-2023-48795](https://www.precursorintelligence.com/what-is/cve-2023-48795): 94%, Medium (CVSS 5.9) - [CVE-2019-9515](https://www.precursorintelligence.com/what-is/cve-2019-9515): 87%, High (CVSS 7.5) - [CVE-2019-9514](https://www.precursorintelligence.com/what-is/cve-2019-9514): 83%, High (CVSS 7.5) - [CVE-2021-4104](https://www.precursorintelligence.com/what-is/cve-2021-4104): 81%, High (CVSS 7.5) - [CVE-2020-27838](https://www.precursorintelligence.com/what-is/cve-2020-27838): 18%, Medium (CVSS 6.5) - [CVE-2018-12023](https://www.precursorintelligence.com/what-is/cve-2018-12023): 8.9%, High (CVSS 7.5) - [CVE-2019-14379](https://www.precursorintelligence.com/what-is/cve-2019-14379): 8.1%, Critical (CVSS 9.8) - [CVE-2018-12022](https://www.precursorintelligence.com/what-is/cve-2018-12022): 7.3%, High (CVSS 7.5) - [CVE-2024-1635](https://www.precursorintelligence.com/what-is/cve-2024-1635): 4.6%, High (CVSS 7.5) ## Questions ### How many vulnerabilities does Single Sign-on have? We track 101 published vulnerabilities listed under the name Single Sign-on, across 17 versions. The most recent Single Sign-on flaw added to the known-exploited list is CVE-2023-44487, on 10 October 2023. ### Which Single Sign-on vulnerabilities are being exploited? 1 is on the list of flaws known to be exploited. The most recently added is CVE-2023-44487. ### Which versions of Single Sign-on do the exploited flaws affect? Each flaw names its own versions, usually as ranges. The newest, CVE-2023-44487, affects 7.0. The versions for every exploited flaw are listed on this page. ### How do I get alerts for Single Sign-on? Create a Precursor Intelligence account and track Single Sign-on. 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 Single Sign-on? 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