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CVE-2023-41999

30
FAUCET Score

CVE-2023-41999 is a critical authentication bypass vulnerability affecting Arcserve UDP prior to version 9.2. An unauthenticated, remote attacker can exploit this flaw to obtain a valid authentication identifier, granting them full access to the management console and the ability to perform authenticated tasks. With a CVSS score of 9.8, this vulnerability presents a severe risk due to its network-based attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. Despite its criticality, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 9.2CPE matchmatch criteria
cpe:2.3:a:arcserve:udp:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.44%
Probability of exploitation in next 30 days
EPSS Percentile
70.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0144 is in the 57th percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

markusprojectvendor investigatingvia llm_extracted

Vendor Advisories (1)

markusprojectllm-markusproject-05859ec6bb641dbcCRITICAL

Arcserve Unified Data Protection Multiple Vulnerabilities

Nov 27, 2023

References

tenable.com / security/research/tra-2023-37
ExploitThird Party Advisory