CVE-2011-0517Winlog Pro Memory Corruption
Stack-based buffer overflow in Sielco Sistemi Winlog Pro 2.07.00 and earlier, when Run TCP/IP server is enabled, allows remote attackers to cause a denial of service (crash) and execute arbitrary code via a crafted 0x02 opcode to TCP port 46823.
Published Jan 20, 2011 · Updated Apr 28, 2026
Key Facts
Patch immediately- CVE-2011-0517 is a critical-severity vulnerability (CVSS 9.3 v2) affecting Winlog Pro (Sielcosistemi).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 40% probability of exploitation in the next 30 days.
- Fixed versions are available, including Winlog Pro 2.07.00.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Scores
CVSS v2
9.3
AV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS (30-day exploit likelihood)
40%
Higher than 98.6% of all scored CVEs
Exploit maturity
Weaponized
ATLAS score
60/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Weaponized
Public exploit code
4
Proof-of-concept links
In-the-wild evidence
2
Reports of active use
Advisories And Exploit References
- advisory42894
- advisoryADV-2011-0126
Description
Stack-based buffer overflow in Sielco Sistemi Winlog Pro 2.07.00 and earlier, when Run TCP/IP server is enabled, allows remote attackers to cause a denial of service (crash) and execute arbitrary code via a crafted 0x02 opcode to TCP port 46823.
Affected Products
1 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Winlog ProSielcosistemi | See advisory | 2.07.00 |
Patched Releases
Winlog Pro
2.07.00
Timeline
Publicly disclosed
Jan 20, 2011
Last updated
Apr 28, 2026
Weakness Type
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
- advisory42894
- advisoryADV-2011-0126
- exploitaluigi.org · winlog_1-adv.txt
- exploitMSF winlog_runtime.rb
- exploitExploitDB-15992
FAQ
Common Questions.
Stack-based buffer overflow in Sielco Sistemi Winlog Pro 2.07.00 and earlier, when Run TCP/IP server is enabled, allows remote attackers to cause a denial of service (crash) and execute arbitrary code via a crafted 0x02 opcode to TCP port 46823.
Affected: Winlog Pro (Sielcosistemi). 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.
Fixed versions are available, including Winlog Pro 2.07.00.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Is CVE-2011-0517 On Your Attack Surface?
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