CVE-2005-0491
CriticalPublic exploitStack-based buffer overflow in Knox Arkeia Server Backup 5.3.x allows remote attackers to execute arbitrary code via a long type 77 request.
Published May 2, 2005 · Updated Apr 15, 2026
Key Facts
Patch immediately- CVE-2005-0491 is a critical-severity vulnerability (CVSS 10.0 v2) affecting Arkeia Server Backup (Knox Software).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 65% 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
10.0
AV:N/AC:L/Au:N/C:C/I:C/A:C
EPSS (30-day exploit likelihood)
65%
Higher than 99.2% 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
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Description
Stack-based buffer overflow in Knox Arkeia Server Backup 5.3.x allows remote attackers to execute arbitrary code via a long type 77 request.
Affected Products
9 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Arkeia Server BackupKnox Software | 5.3.0, 5.3.0_rc1, 5.3.0_rc2, 5.3.0_rc3, 5.3.0_rc4, 5.3.1, 5.3.2, 5.3.3 | n/a |
Timeline
Publicly disclosed
May 2, 2005
Last updated
Apr 15, 2026
References
- patch14327
- patch12594
- exploitMSF type77.rb
- exploitMSF type77.rb
- exploitExploitDB-102
FAQ
Common Questions.
Stack-based buffer overflow in Knox Arkeia Server Backup 5.3.x allows remote attackers to execute arbitrary code via a long type 77 request.
Affected: Arkeia Server Backup (Knox Software) versions 5.3.0, 5.3.0_rc1, 5.3.0_rc2, 5.3.0_rc3, 5.3.0_rc4, 5.3.1, 5.3.2, 5.3.3. 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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