CVE-2026-73573 Details
In Zimbra Collaboration (ZCS) before 10.1.17, a path traversal vulnerability exists in the Zimbra Briefcase document editing functionality due to improper validation of the packages parameter. An authenticated attacker can exploit this vulnerability by supplying a crafted path traversal sequence, potentially allowing unauthorized disclosure of sensitive files within the web application directory.
View at NVD
Exploit prediction scoring system (EPSS) score for CVE-2026-73573
EPSS (Exploit Prediction Scoring System): EPSS predicts the likelihood that a vulnerability will be exploited in the wild. A higher percentage means a greater chance of an exploit occurring. The EPSS model produces a probability score between 0 and 1 (0 and 100%).
0.3 Probability of exploitation activity being observed over the next 30 days (23nd percentile)
CVSS score for CVE-2026-73573
CVSS (Common Vulnerability Scoring System): An open framework owned and managed by FIRST.Org, Inc. that assigns a numerical score from 0 to 10 to software vulnerabilities to indicate their severity.
3.1 Low
Products affected by CVE-2026-73573
Zimbra Collaboration Suite 8.8.0
DVE Score by Bitsight AI
DVE scores complement traditional static scoring systems like CVSS with Bitsight AI powered real-time threat intelligence and underground cyber criminal activity so that security teams can reduce alert fatigue and focus on vulnerabilities most likely to be exploited.
Low
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CVE-2026-73573 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
ID 719 9.10%
RU 690 8.73%
US 590 7.46%
BR 539 6.82%
VN 405 5.12%
DE 369 4.67%
FR 309 3.91%
IN 296 3.74%
IT 248 3.14%
CA 216 2.73%

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CVE-2026-73573 Industry Footprint

Top 10 Identified Industries

*Service provider organizations (typically Technology and Telecommunications) are disproportionally represented in the results given their upstream ownership of end-user infrastructure. See our FAQs.

Industry* Observations Percentage
Telecommunications 1,829 46.29%
Technology 1,737 43.96%
Government/Politics 120 3.04%
Business Services 56 1.42%
Education 50 1.27%
Transportation 27 0.68%
Engineering 20 0.51%
Energy/Resources 18 0.46%
Finance 12 0.30%
Healthcare/Wellness 10 0.25%

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