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CVE-2023-26258

Arcserve UDP through 9.0.6034 allows authentication bypass. The method getVersionInfo at WebServiceImpl/services/FlashServiceImpl leaks the...

Basic Information

CVE State
PUBLISHED
Reserved Date
February 21, 2023
Published Date
July 03, 2023
Last Updated
November 25, 2024
Vendor
n/a
Product
n/a
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.
Tags
nuclei_scanner

CVSS Scores

CVSS v3.1

9.8 - CRITICAL

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

SSVC Information

Exploitation
poc
Automatable
Yes
Technical Impact
total

Exploit Status

Proof of Concept Available
Yes (added 2023-06-28 13:51:27 UTC) Source

References

https://www.arcserve.com/products/arcserve-udp https://www.mdsec.co.uk/2023/06/cve-2023-26258-remote-code-execution-in-arcserve-udp-backup/ https://support.arcserve.com/s/article/KB000015720?language=en_US

Known Exploited Vulnerability Information

Source Added Date
The Shadowserver (via CIRCL) 2025-11-09 00:00:00 UTC

Scanner Integrations

Scanner URL Date Detected
Nuclei https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-26258.yaml 2026-06-01 15:34:35 UTC

Potential Proof of Concepts

Warning: These PoCs have not been tested and could contain malware. Use at your own risk.

mdsecactivebreach/CVE-2023-26258-ArcServe

Type: github • Created: 2023-06-28 13:51:27 UTC • Stars: 21

Timeline

  • CVE ID Reserved

  • Proof of Concept Exploit Available

  • CVE Published to Public

  • Added to KEVIntel

  • Detected by Nuclei