CRITICAL

CVE-2023-26258

CVSS v3

9.8

CRITICAL

EPSS Score

80.8%

exploit probability

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

Arcserve UDP through 9.0.6034 allows authentication bypass. The method getVersionInfo at WebServiceImpl/services/FlashServiceImpl leaks the AuthUUID token. This token can be used at /WebServiceImpl/services/VirtualStandbyServiceImpl to obtain a valid session. This session can be used to execute any task as administrator.

Technical details

Published
7/3/2023

Frequently asked questions

What is CVE-2023-26258?

Arcserve UDP through 9.0.6034 allows authentication bypass. The method getVersionInfo at WebServiceImpl/services/FlashServiceImpl leaks the AuthUUID token. This token can be used at /WebServiceImpl/services/VirtualStandbyServiceImpl to obtain a valid session. This session can be used to execute any task as administrator.

Is CVE-2023-26258 actively exploited?

Active exploitation of CVE-2023-26258 has not been confirmed. The EPSS score is 80.8%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-26258?

CVE-2023-26258 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2023-26258 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.

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