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CVE-2015-2863

32
FAUCET Score

CVE-2015-2863 describes an open redirect vulnerability in Kaseya Virtual System Administrator (VSA) versions 7.x, 8.x, 9.0, and 9.1, allowing attackers to redirect users to malicious websites for phishing. This medium-severity vulnerability has a CVSS score of 4.3, indicating a network-based attack with medium complexity and a potential impact of partial integrity loss. While not listed in CISA KEV, exploit code exists in ExploitDB and Nuclei templates, and it has received some community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 7.0, < 7.0.0.29CPE matchmatch criteria
cpe:2.3:a:kaseya:virtual_system_administrator:*:*:*:*:*:*:*:*
>= 8.0, < 8.0.0.18CPE matchmatch criteria
cpe:2.3:a:kaseya:virtual_system_administrator:*:*:*:*:*:*:*:*
>= 9.0, < 9.0.0.14CPE matchmatch criteria
cpe:2.3:a:kaseya:virtual_system_administrator:*:*:*:*:*:*:*:*
>= 9.1, < 9.1.0.4CPE matchmatch criteria
cpe:2.3:a:kaseya:virtual_system_administrator:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

AV:N/AC:M/Au:N/C:N/I:P/A:N

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
10.32%
Probability of exploitation in next 30 days
EPSS Percentile
95.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Nuclei: CVE-2015-2863 · Sep 18, 2022
ExploitDB: EDB-37621 · Jul 15, 2015
This CVE's current EPSS score of 0.1032 is in the 95th percentile among its peer group of 19,955 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

kb.cert.org / vuls/id/919604
Third Party AdvisoryUS Government Resource