Vendor scorecard

Synacor exploited vulnerabilities: 19 in CISA KEV, 5 in the last 12 months

Gociux · updated with each KEV addition · latest 21 Aug 2026

CISA lists 19 Synacor vulnerabilities as exploited in the wild, 5 of them added in the last 12 months (up from 4 in the 12 months before). 6 (32%) are known to be used in ransomware campaigns. For entries added in the last two years, the median time from CVE publication to the KEV listing was 280 days. Most affected: Zimbra Collaboration Suite (ZCS) (17), Zimbra Collaboration Suite (1), Zimbra Collaborate Suite (ZCS) (1).

Exploited CVEs added per year

Most affected products

Every exploited Synacor CVE

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How to read this: CISA KEV lists vulnerabilities with reliable evidence of exploitation; a vendor with many entries is often one with a large, internet-facing install base, not necessarily worse engineering. "Publication → KEV" is the median number of days between the CVE's publication and its addition to KEV, for entries added in the last 24 months (9 entries); it is an upper bound on how long defenders had, since exploitation usually starts before the listing. Under NIS2 article 21(2)(d), supplier security is part of your risk management; this page is a starting point for that review. Compare vendors on the scorecard index.