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CVE

CVE-2023-26258

9.8
CVSS
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.

Attack Vector
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Privileges Req.
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User Interaction
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Updated Sep 18, 2026View on NVD →
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Arcserve UDP <= 9.0.6034 - Authentication Bypass

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. References: https://www.mdsec.co.uk/2023/06/cve-2023-26258-remote-code-execution-in-arcserve-udp-backup/ https://nvd.nist.gov/vuln/detail/CVE-2023-26258

Used 3.5k times · domain, subdomain, ipv4

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