TI-2025-24546 Aliases CVE-2025-34522 GHSA-vvg7-q6v7-c4xg

Arcserve UDP < 10.2 Pre-Authentication Heap Overflow

MEDIUM 42CWE-122Published 2025-08-27 · Updated 2026-05-15

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: High
Attack requirements: None
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-122 and the CVSS impact.

Summary

A heap-based buffer overflow vulnerability exists in the input parsing logic of Arcserve Unified Data Protection (UDP). This flaw can be triggered without authentication by sending specially crafted input to the target system. Improper bounds checking allows an attacker to overwrite heap memory, potentially leading to application crashes or remote code execution. Exploitation occurs in the context of the affected process and does not require user interaction. The vulnerability poses a high risk due to its pre-authentication nature and potential for full compromise. This vulnerability affects all UDP versions prior to 10.2. UDP 10.2 includes the necessary patches and requires no action. Versions 8.0 through 10.1 are supported and require either patch application or upgrade to 10.2. Versions 7.x and earlier are unsupported or out of maintenance and must be upgraded to 10.2 to remediate the issue.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00556 46th percentileScored 2026-11-07

Fix Fixed Unified Data Protection (UDP) (Arcserve): 10.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Arcserve	Unified Data Protection (UDP)	8.0 – 10.1; all versions	10.2	Patch available	CNA

Unified Data Protection (UDP) VendorArcserve Affected 8.0 – 10.1; all versions Fixed in 10.2 Patch available CNA

CPE configurations NVD · 4

CPE	Versions	Role	Vendor
cpe:2.3:a:arcserve:udp::::::::	before 7.0; 8.0 to before 10.2	Vulnerable	Arcserve
cpe:2.3:a:arcserve:udp:7.0:-::::::	7.0	Vulnerable	Arcserve
cpe:2.3:a:arcserve:udp:7.0:update_1::::::	7.0 update_1	Vulnerable	Arcserve
cpe:2.3:a:arcserve:udp:7.0:update_2::::::	7.0 update_2	Vulnerable	Arcserve

cpe:2.3:a:arcserve:udp:*:*:*:*:*:*:*:* Versions before 7.0; 8.0 to before 10.2 Vulnerable ·Arcserve
cpe:2.3:a:arcserve:udp:7.0:-:*:*:*:*:*:* Versions 7.0 Vulnerable ·Arcserve
cpe:2.3:a:arcserve:udp:7.0:update_1:*:*:*:*:*:* Versions 7.0 update_1 Vulnerable ·Arcserve
cpe:2.3:a:arcserve:udp:7.0:update_2:*:*:*:*:*:* Versions 7.0 update_2 Vulnerable ·Arcserve

Remediation

Fix · CNA Unified Data Protection (UDP) (Arcserve) Fixed in 10.2

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Advisory · 2025-08-27
Arcserve Unified Data Protection (UDP) — support.arcserve.com/s/article/Important-Security-Bulletin-…
4 records Highest priority Priority MEDIUM 2 MEDIUM, 2 LOW
Other records, highest priority first
- TI-2025-24547 Arcserve UDP < 10.2 Pre-Authentication Heap OverflowPriority MEDIUM 42
- TI-2025-24544 Arcserve UDP < 10.2 Authentication BypassPriority LOW 36
- TI-2025-24545 Arcserve UDP < 10.2 Reflected Cross-Site Scripting (XSS)Priority LOW 21
Show all 4 records → Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2025-34522
2026-10-03 Alias added: GHSA-vvg7-q6v7-c4xg

References

Patch 1

https://support.arcserve.com/s/article/Important-Security-Bulletin-Must-read-for-all-Arcserve-UDP-customers-on-all-versions

TI-2015-03429 Directory traversal vulnerability in Arcserve UDP before 5.0 Update 4 allows remote… KEVCVSS 3.1CRITICAL 9.1
TI-2024-00736 Authentication Bypass via wizardLogin in Arcserve Unified Data Protection CVSS 3.1CRITICAL 9.8
TI-2023-11421 Arcserve UDP through 9.0.6034 allows authentication bypass. CVSS 3.1CRITICAL 9.8
TI-2024-00737 Authentication Bypass via wizardLogin in Arcserve Unified Data Protection CVSS 3.1HIGH 8.8
TI-2024-00738 Unauthenticated DoS in Arcserve Unified Data Protection CVSS 3.1HIGH 7.5
TI-2023-22379 Arcserve UDP Unauthenticated RCE CVSS 3.1CRITICAL 9.8

See all 15 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences