CVE-2023-51080Public exploitNetwork attack vector

Application crash via recursive NaN conversion

Published Dec 27, 2023 · Updated Aug 2, 2024

Stack overflow in NumberUtil.toBigDecimal in Hutool hutool-core 5.8.22 through 5.8.24 allows attackers to crash consuming applications. For the string "NaN," failed BigDecimal conversion falls back to parseNumber and passes its result into the overloaded toBigDecimal method, causing the two overloads to recurse until the Java stack is exhausted. The input must reach this utility method through a consuming application; the demonstrated consequence is a StackOverflowError that terminates the affected execution path.

CVSS severity7.5
High
EPSS probability0.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack overflow in NumberUtil.toBigDecimal in Hutool hutool-core 5.8.22 through 5.8.24 allows attackers to crash consuming applications. For the string "NaN," failed BigDecimal conversion falls back to parseNumber and passes its result into the overloaded toBigDecimal method, causing the two overloads to recurse until the Java stack is exhausted. The input must reach this utility method through a consuming application; the demonstrated consequence is a StackOverflowError that terminates the affected execution path.

The record

CVE
CVE-2023-51080
Published
Dec 27, 2023
Updated
Aug 2, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 27, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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 privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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.

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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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1499.004Application or System Exploitation

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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