Vulnerability report

Exploited in the wild High confidence Not in CISA KEV

CVE-2014-0295

.NET Framework

Microsoft / .NET Framework

Watch CVE-2014-0295 Browse KEV feed
Severity
CVSS 4.3 · Medium
Confidence
High
Exploit status
Exploited in the wild
EPSS
13.8%
First observed
—
Last observed
—

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2014-0295 is an unauthenticated vulnerability affecting Microsoft .NET Framework. VsaVb7rt.dll in Microsoft .NET Framework 2.0 SP2 and 3.5.1 does not implement the ASLR protection mechanism, which makes it easier...

Is it exploited?

Yes. Previdian tracks this CVE as a known exploited vulnerability. Confidence is high. Also confirmed by third-party sources.

Who is affected?

Microsoft / .NET Framework.

What should we do?

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

Overview

.NET Framework

VsaVb7rt.dll in Microsoft .NET Framework 2.0 SP2 and 3.5.1 does not implement the ASLR protection mechanism, which makes it easier for remote attackers to execute arbitrary code via a crafted web site, as exploited in the wild in February 2014, aka "VSAVB7RT ASLR Vulnerability."

View vendor advisory (opens in new tab)
Published
12 Feb 2014
Exploitation Reported
12 Feb 2014
Attack vector
Remote
Complexity
—
Privileges
None
User interaction
—

Tags

dotnet

CVE References

  • CVE Record CVE.org · CVE Record https://www.cve.org/CVERecord?id=CVE-2014-0295
  • MS14-009 docs.microsoft.com · Vendor Advisory https://docs.microsoft.com/en-us/security-updates/securitybulletins/2...
  • 56793 secunia.com · Third-Party Advisory http://secunia.com/advisories/56793
  • 1029745 securitytracker.com · VDB Entry http://www.securitytracker.com/id/1029745
  • 103164 osvdb.org · VDB Entry http://osvdb.org/103164
  • 65418 securityfocus.com · VDB Entry http://www.securityfocus.com/bid/65418
  • greyhathacker.net greyhathacker.net · CVE Record http://www.greyhathacker.net/?p=585

Exploitation evidence

Why Previdian marks this CVE as exploited

Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.

Exploited in the wild

CVE

Recorded 12 Feb 2014

A trusted third party reported exploitation.

Known exploited vulnerability sources

Per-source evidence links for KEV attestations are available through the Previdian Pro API.

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Source Added
CVE First 2014-02-12 02:00 UTC

Detection

Operational artifacts and observed signals

Make the evidence actionable in scanner, SOC, and edge-control workflows.

Observed signals

Request targets
User-Agents
Callback hosts
0
0
0

Request targets and User-Agents available in Pro. Callback host details available in Enterprise.

Scanner coverage

No scanner integrations recorded yet.

Virtual patch status

No Previdian virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.

Learn about virtual patches →

No detection artifacts or sensor request patterns are available for this CVE yet.

Check back as sensor telemetry and scanner integrations are updated.

Risk and context

Severity, weaknesses, and research context

CVSS v2.0

4.3 Medium

Potential damage if exploited. Separate from whether attackers are using it.

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

EPSS

13.8%

Estimated chance of exploitation in the next 30 days. Previdian's warning comes from evidence, not this score.

Weaknesses

Permissions, Privileges, and Access Controls CWE-264

Timeline

From disclosure to observed exploitation

  1. 02:00 UTC

    Added to Previdian KEV Feed

    High-confidence, third-party attested exploitation

  2. 02:00 UTC

    CVE published

    Vulnerability disclosed publicly

  3. 00:00 UTC

    CVE ID reserved

    Identifier reserved by the CNA

Pro API

Automate this intelligence

Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.

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  • Evidence confidence and provenance
  • First-party sensor telemetry
  • PoC and scanner references
  • Affected versions and enrichment
  • Automation-ready JSON delivery

GET /api/v2/pro/kevs/CVE-2014-0295

Free JSON includes basic KEV fields 
{
  "cve_id": "CVE-2014-0295",
  "confidence": "High",
  "cvss_score": 4.3,
  "cvss_estimated": false,
  "epss_score": 0.13768,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "attempts": 0, "sensors": 0 }
}