CVE-2020-11862Network attack vector

Service interruption via unbounded TLS client renegotiation

Published Mar 13, 2024 · Updated Aug 26, 2024

Resource exhaustion in OpenText Privileged Access Manager before 3.7.0.2 allows remote attackers to interrupt HTTPS service. The HTTPS listener accepts repeated client-initiated TLS renegotiation without throttling, allowing connection floods to consume service resources. No authentication or user interaction is required, and successful flooding causes service interruption without reported data disclosure or modification.

CVSS severity8.6
High
EPSS probability0.70%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource exhaustion in OpenText Privileged Access Manager before 3.7.0.2 allows remote attackers to interrupt HTTPS service. The HTTPS listener accepts repeated client-initiated TLS renegotiation without throttling, allowing connection floods to consume service resources. No authentication or user interaction is required, and successful flooding causes service interruption without reported data disclosure or modification.

The record

CVE
CVE-2020-11862
Published
Mar 13, 2024
Updated
Aug 26, 2024
Vendor
OpenText
Product
OpenText Privileged Access Manager
Classifications
CWE-770, CAPEC-125, T1498.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 13, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 26, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <3.7.0.2
  2. Affected versionversion=3.7.0.2 <<

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OpenText · OpenText Privileged Access Managerversion=0 <3.7.0.2; version=3.7.0.2 <<

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
8.6OpenTextCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
CAPEC-125Flooding
T1498.003Application Exhaustion Flood

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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