CVE-2023-26258

CRITICAL EXPLOITED NUCLEI

Arcserve UDP <9.0.6034 - Auth Bypass

Title source: llm

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.

Exploits (1)

nomisec WORKING POC 23 stars
by mdsecactivebreach · remote
https://github.com/mdsecactivebreach/CVE-2023-26258-ArcServe

Nuclei Templates (1)

Arcserve UDP <= 9.0.6034 - Authentication Bypass
CRITICALVERIFIEDby daffainfo
Shodan: http.favicon.hash:-1889244460

References (3)

Scores

CVSS v3 9.8
EPSS 0.7936
EPSS Percentile 99.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

VulnCheck KEV 2025-08-19
CWE
CWE-863
Status published
Products (1)
arcserve/udp < 9.0.6034
Published Jul 03, 2023
Tracked Since Feb 18, 2026