CVE-2025-62813

Rejected because documented API misuse is not exposure

Published Oct 23, 2025 · Updated Oct 23, 2025

LZ4 is not affected by CVE-2025-62813; the CNA withdrew the record after finding that the reported behavior is not a security issue. The cited patch adds NULL checks to LZ4F_createCDict_advanced and LZ4F_getFrameInfo for caller-supplied API parameters, not untrusted frame data. A crash requires an application to violate documented non-null pointer contracts, so processing attacker-controlled LZ4 frames does not reach the disputed condition.

CVSS severityUnavailable
Unscored
EPSS probabilityUnavailable
No score available in this record
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

LZ4 is not affected by CVE-2025-62813; the CNA withdrew the record after finding that the reported behavior is not a security issue. The cited patch adds NULL checks to LZ4F_createCDict_advanced and LZ4F_getFrameInfo for caller-supplied API parameters, not untrusted frame data. A crash requires an application to violate documented non-null pointer contracts, so processing attacker-controlled LZ4 frames does not reach the disputed condition.

The record

CVE
CVE-2025-62813
Published
Oct 23, 2025
Updated
Oct 23, 2025
Vendor
LZ4
Product
LZ4
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Oct 23, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 23, 2025Record 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 <=1.10.0

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

LZ4 · LZ4version=0 <=1.10.0

Published CVSS scores

No CVSS assessment is available in this record.

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

Weakness, pattern, technique

No sourced classifications are available.

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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