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CRITICAL · CVSS 9.1 CISA Known Exploited Vulnerability

CVE-2015-4068

Arcserve Unified Data Protection (UDP) Directory Traversal Vulnerability

Arcserve Unified Data Protection (UDP)

Directory traversal vulnerability in Arcserve UDP before 5.0 Update 4 allows remote attackers to obtain sensitive information or cause a denial of service via a crafted file path to the (1) reportFileServlet or (2) exportServlet servlet.

CVSS
9.1
CRITICAL
EPSS
63.6%
30-day exploitation
Ransomware groups
0
recorded exploiting
Published
29 May 2015
CWE-22

Exploitation status

CISA Known Exploited Vulnerabilities

Listed by CISA on 25 March 2022. US federal agencies were required to remediate it by 15 April 2022.

EPSS — exploitation probability

FIRST puts the probability of exploitation activity in the next 30 days at 63.6%, which is higher than 99.2% of all scored vulnerabilities. EPSS is a forecast of activity, not a measure of severity, and it is rescored daily.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Frequently asked questions

Is CVE-2015-4068 being exploited by ransomware groups?

No ransomware group in this database is currently recorded as exploiting CVE-2015-4068.

What does CVE-2015-4068 affect?

CVE-2015-4068 affects Arcserve Unified Data Protection (UDP). Directory traversal vulnerability in Arcserve UDP before 5.0 Update 4 allows remote attackers to obtain sensitive information or cause a denial of service via a crafted file path to the (1) reportFileServlet or (2) exportServlet servlet.

How severe is CVE-2015-4068?

CVE-2015-4068 is rated CRITICAL with a CVSS base score of 9.1. EPSS puts the probability of exploitation in the next 30 days at 63.6%, higher than 99.2% of all scored vulnerabilities. It is listed in the CISA Known Exploited Vulnerabilities catalog, with a federal remediation deadline of 15 April 2022.

How should organisations respond to CVE-2015-4068?

Apply the vendor patch for Arcserve Unified Data Protection (UDP) as the first priority, and treat any internet-facing instance as the most urgent. Because this vulnerability is associated with ransomware activity, also review whether the affected systems were reachable before patching, rather than assuming that patching alone closes the incident.