# Unified Communications Manager vulnerabilities > Unified Communications Manager is made by Cisco. We track 233 published vulnerabilities listed under that exact name, across 306 versions. 2 of them are on the list of flaws known to be exploited, the newest added on 25 June 2026. Cisco lists newer releases under their own names, such as Unified Communications Manager Im and Presence Service, so check those pages too. Canonical page: https://www.precursorintelligence.com/product/cisco/unified_communications_manager ## At a glance - **Made by:** [Cisco](https://www.precursorintelligence.com/vendors/cisco) - **Published vulnerabilities:** 233 - **Known to be exploited:** 2 (listed under the name Unified Communications Manager) - **Versions tracked:** 306 - **Most recently added to the known-exploited list:** [CVE-2026-20230](https://www.precursorintelligence.com/what-is/cve-2026-20230), 25 June 2026. We keep watching the list. ## Is Unified Communications Manager listed under other names? Cisco also lists Unified Communications Manager under more specific names, such as Unified Communications Manager Im and Presence Service and Unified Communications Manager Im & Presence Service. Flaws listed only under those names are counted on their own pages, not here. - [Unified Communications Manager Im and Presence Service](https://www.precursorintelligence.com/product/cisco/unified_communications_manager_im_and_presence_service): 36 published vulnerabilities - Unified Communications Manager Im & Presence Service: 6 published vulnerabilities - [Unified Communications Manager Express](https://www.precursorintelligence.com/product/cisco/unified_communications_manager_express): 1 published vulnerability ## Which versions of Unified Communications Manager do the exploited flaws hit? Each exploited flaw lists the versions it affects, as published. "14.0 to before 14su6" means from 14.0 up to, but not including, 14su6. - [CVE-2026-20230](https://www.precursorintelligence.com/what-is/cve-2026-20230) (Cisco Unified Communications Manager Server-Side Request Forgery (SSRF) Vulnerability): 14.0 to before 14su6, 15.0 to 15su4a - [CVE-2021-44228](https://www.precursorintelligence.com/what-is/cve-2021-44228) (Apache Log4j2 Remote Code Execution Vulnerability): before 11.5(1) ## Which Unified Communications Manager vulnerabilities are being exploited? 2 flaws are on the government list of vulnerabilities known to be exploited, newest first: - [CVE-2026-20230](https://www.precursorintelligence.com/what-is/cve-2026-20230): Cisco Unified Communications Manager Server-Side Request Forgery (SSRF) Vulnerability. High, CVSS 8.6, chance of use in 30 days 88%, known exploited since 25 June 2026. - [CVE-2021-44228](https://www.precursorintelligence.com/what-is/cve-2021-44228): Apache Log4j2 Remote Code Execution Vulnerability. Critical, CVSS 10.0, chance of use in 30 days >99%, known exploited since 10 December 2021. ## Which Unified Communications Manager 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-2026-20230](https://www.precursorintelligence.com/what-is/cve-2026-20230): 88%, High (CVSS 8.6), known exploited - [CVE-2008-0027](https://www.precursorintelligence.com/what-is/cve-2008-0027): 57%, Critical (CVSS 10.0) - [CVE-2011-3315](https://www.precursorintelligence.com/what-is/cve-2011-3315): 26%, High (CVSS 7.8) - [CVE-2011-1610](https://www.precursorintelligence.com/what-is/cve-2011-1610): 25%, Medium (CVSS 6.4) - [CVE-2013-5528](https://www.precursorintelligence.com/what-is/cve-2013-5528): 23%, Medium (CVSS 4.0) - [CVE-2011-1609](https://www.precursorintelligence.com/what-is/cve-2011-1609): 20%, High (CVSS 8.5) - [CVE-2006-5277](https://www.precursorintelligence.com/what-is/cve-2006-5277): 9.6%, Critical (CVSS 9.3) - [CVE-2006-5278](https://www.precursorintelligence.com/what-is/cve-2006-5278): 8.9%, Critical (CVSS 10.0) - [CVE-2010-3039](https://www.precursorintelligence.com/what-is/cve-2010-3039): 8.6%, Medium (CVSS 6.8) ## Questions ### How many vulnerabilities does Unified Communications Manager have? We track 233 published vulnerabilities listed under the name Unified Communications Manager, across 306 versions. The most recent Unified Communications Manager flaw added to the known-exploited list is CVE-2026-20230, on 25 June 2026. ### Which Unified Communications Manager vulnerabilities are being exploited? 2 are on the list of flaws known to be exploited. The most recently added are CVE-2026-20230 and CVE-2021-44228. ### Why are newer Unified Communications Manager flaws missing from this page? Cisco also lists Unified Communications Manager under more specific names, such as Unified Communications Manager Im and Presence Service and Unified Communications Manager Im & Presence Service. Flaws listed only under those names are counted on their own pages, not here. Open the release you run to see its own list. ### Which versions of Unified Communications Manager do the exploited flaws affect? Each flaw names its own versions, usually as ranges. The newest, CVE-2026-20230, affects 14.0 to before 14su6, 15.0 to 15su4a. The versions for every exploited flaw are listed on this page. ### How do I get alerts for Unified Communications Manager? Create a Precursor Intelligence account and track Unified Communications Manager. 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 Unified Communications Manager? 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. 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