Which products and versions are affected by CVE-2005-2535?

Affected: Arcserve Backup 2000 (Broadcom) versions r16.5; Brightstor Arcserve Backup (Broadcom) versions 11.0, 11.1, 7.0, 9.0.1, 9.0; Brightstor Arcserve Backup Hp (Broadcom) versions 11.1, among others. The full list is in the CVE brief.

Is CVE-2005-2535 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2005-2535 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2005-2535?

Public exploit code is available.

Is there a fix for CVE-2005-2535?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2005-2535 be patched?

Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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Vulnerability Intelligence

CVE-2005-2535

HighPublic exploit

Buffer overflow in the Discovery Service in BrightStor ARCserve Backup 9.0 through 11.1 allows remote attackers to execute arbitrary commands via a large packet to TCP port 41523, a different vulnerability than CVE-2005-0260.

Published Aug 10, 2005 · Updated Apr 15, 2026

Key Facts

Patch immediately

CVE-2005-2535 is a high-severity vulnerability (CVSS 7.5 v2) affecting Arcserve Backup 2000 (Broadcom), Brightstor Arcserve Backup (Broadcom), Brightstor Arcserve Backup Hp (Broadcom) and 1 more product.
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 81% probability of exploitation in the next 30 days.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v2

7.5

AV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS (30-day exploit likelihood)

81%

Higher than 99.6% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2005-2535 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

Affected Products

26 affected entries in total

Product	Affected versions	Fixed in
Arcserve Backup 2000Broadcom	r16.5	n/a
Brightstor Arcserve BackupBroadcom	11.0, 11.1, 7.0, 9.0.1, 9.0	n/a
Brightstor Arcserve Backup HpBroadcom	11.1	n/a
Brightstor Enterprise BackupBroadcom	10.0, 10.5, 10	n/a

Timeline

Publicly disclosed
Aug 10, 2005
Last updated
Apr 15, 2026

References

advisorybrightstor-discovery-servicepc-bo(19320)
patch14293
patchhttp://www3.ca.com/securityadvisor/vulninfo/vuln.aspx?ID=32478
patchVU#966880
patch12536

7 more references in the full CVE brief

FAQ

Common Questions.

Buffer overflow in the Discovery Service in BrightStor ARCserve Backup 9.0 through 11.1 allows remote attackers to execute arbitrary commands via a large packet to TCP port 41523, a different vulnerability than CVE-2005-0260.
Affected: Arcserve Backup 2000 (Broadcom) versions r16.5; Brightstor Arcserve Backup (Broadcom) versions 11.0, 11.1, 7.0, 9.0.1, 9.0; Brightstor Arcserve Backup Hp (Broadcom) versions 11.1, among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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