CVE-2024-3207Public exploit

Application crash via misordered stream bounds check

Published Apr 2, 2024 · Updated Aug 21, 2024

Heap buffer over-read in ermig1979 Simd 6.0.134 allows context-dependent attackers to crash consuming software via a digit-terminated stream. InputMemoryStream::ReadUnsigned tests _data[_pos] for a separator before confirming that _pos remains below _size, causing a one-byte out-of-bounds read at the allocation boundary. Triggering requires a consuming application to supply attacker-controlled data to this parser; the library does not itself expose a network service.

CVSS severity5.5
Medium
EPSS probability0.97%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap buffer over-read in ermig1979 Simd 6.0.134 allows context-dependent attackers to crash consuming software via a digit-terminated stream. InputMemoryStream::ReadUnsigned tests _data[_pos] for a separator before confirming that _pos remains below _size, causing a one-byte out-of-bounds read at the allocation boundary. Triggering requires a consuming application to supply attacker-controlled data to this parser; the library does not itself expose a network service.

The record

CVE
CVE-2024-3207
Published
Apr 2, 2024
Updated
Aug 21, 2024
Vendor
ermig1979
Product
Simd
Classifications
CWE-122
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 2, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 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?

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  1. Affected versionversion=6.0.134

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

ermig1979 · Simdversion=6.0.134

Published CVSS scores

5.2VulDBAV:A/AC:L/Au:S/C:P/I:P/A:P
5.5VulDBCVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
5.5VulDBCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-122Heap-based Buffer Overflow

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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