CVE-2024-37820Public exploitNetwork attack vector

Authenticated query failure via unchecked function error

Published Jun 25, 2024 · Updated Nov 21, 2024

Nil pointer dereference in PingCAP TiDB Server 8.2.0-alpha-216-gfe5858b allows remote authenticated users to terminate a query. ColumnSubstituteImpl passes a failed function construction into collation inference instead of returning the error, causing inferCollation to dereference a nil expression. Database credentials and crafted SQL are required; PingCAP reports that only the statement fails, without disrupting other connections or users.

CVSS severity5.4
Medium
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Nil pointer dereference in PingCAP TiDB Server 8.2.0-alpha-216-gfe5858b allows remote authenticated users to terminate a query. ColumnSubstituteImpl passes a failed function construction into collation inference instead of returning the error, causing inferCollation to dereference a nil expression. Database credentials and crafted SQL are required; PingCAP reports that only the statement fails, without disrupting other connections or users.

The record

CVE
CVE-2024-37820
Published
Jun 25, 2024
Updated
Nov 21, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-476
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 25, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 21, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.4CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

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

Weakness, pattern, technique

CWE-476NULL Pointer Dereference

Public exploit references

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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