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CVE-2020-7928

Improper neutralization of null byte leads to read overrun

MEDIUM
6.5
CVSS Score
Published: November 23, 2020 at 04:35 PM UTC
Updated: June 17, 2026 at 03:25 AM UTC
1 product affected across 1 vendorMongoDB

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Severity
MEDIUM6.5
Exploit prediction
EPSS 1%

Description

A user authorized to perform database queries may trigger a read overrun and access arbitrary memory by issuing specially crafted queries. This issue affects MongoDB Server v4.4 versions prior to 4.4.1; MongoDB Server v4.2 versions prior to 4.2.9; MongoDB Server v4.0 versions prior to 4.0.20 and MongoDB Server v3.6 versions prior to 3.6.20.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

MongoDB· MongoDB
95%
3.6 ≤ v < 3.6.203.6.0 ≤ v < 3.6.204.0 ≤ v < 4.0.204.0.0 ≤ v < 4.0.204.2 ≤ v < 4.2.94.2.0 ≤ v < 4.2.94.4 ≤ v < 4.4.14.4.0 ≤ v < 4.4.14.5.0 ≤ v < 4.5.13.64.04.24.4
Affected range stops below 3.6.20, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.0.20, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.2.9, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.4.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.5.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_MISCIssue TrackingPatchVendor Advisory
Source: [email protected]
https://jira.mongodb.org/browse/SERVER-49404

CVSS

6.5MEDIUMmongodb
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-158NVD-CWE-Other

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