CVE-2020-4609

Local code execution via unchecked buffer bounds

Published Jun 25, 2021 · Updated Sep 17, 2024

Buffer overflow in IBM Security Verify Privilege Manager 10.8.2 allows local users to execute arbitrary code or crash the system. IBM attributes the flaw to improper bounds checking but has not disclosed the affected component, buffer operation, or attacker-controlled input. Exploitation requires local access and high attack complexity; success permits code execution or interrupts the system through a crash.

CVSS severity7.4
High
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in IBM Security Verify Privilege Manager 10.8.2 allows local users to execute arbitrary code or crash the system. IBM attributes the flaw to improper bounds checking but has not disclosed the affected component, buffer operation, or attacker-controlled input. Exploitation requires local access and high attack complexity; success permits code execution or interrupts the system through a crash.

The record

CVE
CVE-2020-4609
Published
Jun 25, 2021
Updated
Sep 17, 2024
Vendor
IBM
Product
IBM Security Verify Privilege Manager
Classifications
CWE-120, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 25, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 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=10.8.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

IBM · IBM Security Verify Privilege Managerversion=10.8.2

Published CVSS scores

7.4IBMCVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
6.4IBMCVSS:3.0/C:H/AC:H/PR:N/A:H/AV:L/I:H/UI:N/S:U/E:U/RC:C/RL:O

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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1203Exploitation for Client Execution

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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