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Vulnerability report

Active exploitation observed Confirmed confidence Not in CISA KEV

CVE-2013-3821

PeopleSoft Products

Oracle / PeopleSoft Products

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Severity
CVSS 6.4 · Medium
Confidence
Confirmed
Exploit status
Observed in sensors
EPSS
6.9%
First observed
14 Jul 2026
Last observed
21 Aug 2026

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2013-3821 is an unauthenticated vulnerability affecting Oracle PeopleSoft Products. Unspecified vulnerability in the PeopleSoft Enterprise PeopleTools component in Oracle PeopleSoft Products 8.51, 8.52, and 8.53...

Is it exploited?

Yes. Previdian sensors observed exploitation attempts with confirmed confidence.

Who is affected?

Oracle / PeopleSoft Products.

What should we do?

Patch immediately, validate internet-facing exposure, and monitor for matching requests.

Overview

PeopleSoft Products

Unspecified vulnerability in the PeopleSoft Enterprise PeopleTools component in Oracle PeopleSoft Products 8.51, 8.52, and 8.53 allows remote attackers to affect confidentiality and availability via unknown vectors related to Integration Broker.

View vendor advisory (opens in new tab)
Published
17 Jul 2013
Exploitation Reported
14 Jul 2026
Attack vector
Remote
Complexity
Low
Privileges
None
User interaction
—

CVE References

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

Previdian

Recorded 14 Jul 2026

Independent exploitation attestation added to the Previdian record.

Active exploitation observed

Previdian sensor

First observed 14 Jul 2026

First-party sensor telemetry confirms matching exploitation attempts.

Known exploited vulnerability sources

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

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Source Added
Previdian First 2026-08-07 10:09 UTC

Operational indicators for this CVE are listed under Detection.

Sensor telemetry

First-party evidence of exploitation activity

Aggregate observations show the scale, recency, and distribution of activity without overstating sparse data.

71

Attempts observed

5

Unique attacker IPs

2

Attacker countries

JP · NL

1

Sensors observed

Exploitation attempts over the last 45 days

Daily events observed by Previdian sensors

Updated 26 Aug 2026

0
10
0
0
0
0
0
0
0
0
9
0
0
0
0
5
0
0
0
4
0
22
23
0
0
9
5
0
0
0
0
0
0
0
0
0
0
0
0
3
0
0
0
0
0
13 Jul 22 Jul 31 Jul 9 Aug 26 Aug

First observed 14 Jul 2026 · Last observed 21 Aug 2026

Pro adds sensor region and window summaries. Enterprise adds raw IPs, paths, User-Agents, and payloads.

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Detection

Operational artifacts and observed signals

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

Observed signals

Request targets
1
User-Agents
2

Raw values available in Pro and 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.

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Attacker IP Indicators

Attacker IP indicators observed · available in Pro and Enterprise.

Sensor-derived attacker IP indicators are available to Pro and Enterprise accounts under Detection and through the Pro API.

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Risk and context

Severity, weaknesses, and research context

CVSS v2.0

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

EPSS

6.9%

Recent mention · Rapid7

Active Exploitation of Oracle PeopleSoft Zero-Day (CVE-2026-35273)

OverviewOn June 10, 2026, Oracle published a security alert for CVE-2026-35273, a critical vulnerability in the Updates Environment Management component of PeopleSoft Enterprise PeopleTools. Oracle released an out-of-band patch the same day as the advisory, underscoring the...

Read full advisory

Timeline

From disclosure to observed exploitation

  1. Observed by Previdian sensors

    Evidence-backed exploitation signal

  2. Indicators of compromise added (9)

    Indicators of compromise recorded

  3. CVE published

    Vulnerability disclosed publicly

  4. 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-2013-3821

Free JSON includes basic KEV fields 
{
  "cve_id": "CVE-2013-3821",
  "confidence": "Confirmed",
  "cvss_score": 6.4,
  "cvss_estimated": false,
  "epss_score": 0.06897,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": true
  },
  "sensor_telemetry": { "attempts": 71, "sensors": 1 }
}

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