Stack-based buffer overflow in Sysax Multi Server before 5.52, when HTTP is enabled, allows remote authenticated users with the create folder permission to execute arbitrary code via a crafted request.
CVE-2012-6530
This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 7.1 — v2 rates that HIGH (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:N/AC:H/Au:S/C:C/I:C/A:C. CVSS v2 is an older, coarser metric than v3.1/v4.0 (no Scope, no User Interaction, no Attack Requirements), so it is not directly comparable to a v3 or v4 score. NVD has never re-scored this record under v3. EPSS predicts 46.1% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.
- Public exploit code is available (Metasploit, epss top5pct, public exploit)
No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.
- CVSS v2.0 (legacy)
- 7.1HIGHNVD never assigned a CVSS v3 rating to this CVE
- EG Score
- 7.1HIGHlow confidence
- EG Risk
- 62EG Risk 62/100CISA SSVC
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity71% × 45%Exploitation65% × 40%Automatability30% × 15%CISA SSVC: Track at low, Track or Track* at medium and Track* or Attend at high mission impact.Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix. - EPSS PROB
- 46%
- EPSS %ILE
- 98th
- KEV
- Not listed
CISA SSVCTrack at low, Track or Track* at medium and Track* or Attend at high mission impact.
No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
Exploitation public PoC (EG-KEV: weaponized) · Automatable unknown (not published for this CVE) · Technical impact unknown (not published for this CVE). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table
Published
January 31, 2013
Last Modified
April 29, 2026
References (8)
- cve@mitrehttp://www.exploit-db.com/exploits/18382
- cve@mitrehttp://www.exploit-db.com/exploits/18420
- cve@mitrehttp://www.pwnag3.com/2012/01/sysax-multi-server-550-exploit.html
- cve@mitrehttp://www.securityfocus.com/bid/51548
- af854a3a-2127-422b-91ae-364da2661108http://www.exploit-db.com/exploits/18382
- af854a3a-2127-422b-91ae-364da2661108http://www.exploit-db.com/exploits/18420
- af854a3a-2127-422b-91ae-364da2661108http://www.pwnag3.com/2012/01/sysax-multi-server-550-exploit.html
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/51548
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 1× in last 7d / 11× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 109 total refreshes for this CVE.
- 2026-09-30 14:58 UTCEPSS rescore
- 2026-09-29 08:33 UTCEG score recompute
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- 2026-08-07 16:21 UTCEPSS rescore
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- 2026-07-26 13:47 UTCEG score recompute▲ 7.10
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- 2026-07-23 01:08 UTCEG score recompute▼ 2.60
- 2026-07-23 00:12 UTCEG score recompute▲ 2.60
- 2026-07-22 21:50 UTCEG score recompute
- 2026-07-22 14:04 UTCEPSS rescore
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- 2026-05-29 01:08 UTCEG score recompute
- 2026-05-29 01:08 UTCGHSA enrichment
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Publicly available exploits
(3 references)Working exploit code is in the public domain (1 Metasploit module) (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Metasploitexploit/windows/http/sysax_create_folder✓ verifiedFirst seen Jul 29, 2012
Sysax Multi Server 5.64 Create Folder Buffer Overflow
Open source ↗ - Exploit-DBEDB-18420First seen Jan 26, 2012
Sysax Multi Server 5.50 - Create Folder Remote Code Execution Buffer Overflow (Metasploit)
Open source ↗ - Exploit-DBEDB-18382First seen Jan 18, 2012
Sysax Multi Server 5.50 - Create Folder Buffer Overflow
Open source ↗
Related CVEs(same CWE)
Same CWE
10 shownCWE-119
- CVE-2012-5958EG 10.0EPSS p100HIGH
- CVE-2012-5959EG 10.0EPSS p100HIGH
- CVE-2012-5960EG 10.0EPSS p98HIGH
- CVE-2012-5961EG 10.0EPSS p98HIGH
- CVE-2012-5962EG 10.0EPSS p98HIGH
- CVE-2012-5963EG 10.0EPSS p98HIGH
- CVE-2012-5964EG 10.0EPSS p98HIGH
- CVE-2012-5965EG 10.0EPSS p98HIGH
- CVE-2013-0230EG 10.0EPSS p99HIGH
- CVE-2012-6352EG 5.0MEDIUM
Frequently asked(4)
What is CVE-2012-6530?
When was CVE-2012-6530 disclosed?
Is CVE-2012-6530 actively exploited?
How do I remediate CVE-2012-6530?
Dependency Blast Radius
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