CVE-2025-29364Public exploitNetwork attack vector

Host-memory exposure and interruption via cross-segment syscalls

Published Aug 28, 2025 · Updated Aug 28, 2025

Buffer overflow in spimsimulator SPIM 9.1.24 and earlier allows attackers to read host memory or interrupt the simulator through MIPS syscalls. READ_SYSCALL and WRITE_SYSCALL validate only the start and calculated end addresses, without ensuring that the entire range stays inside one virtual-memory segment. A crafted MIPS program can span distinct valid segments, causing the host read or write to cross an allocated buffer boundary and expose memory or interrupt SPIM.

CVSS severity6.5
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

Buffer overflow in spimsimulator SPIM 9.1.24 and earlier allows attackers to read host memory or interrupt the simulator through MIPS syscalls. READ_SYSCALL and WRITE_SYSCALL validate only the start and calculated end addresses, without ensuring that the entire range stays inside one virtual-memory segment. A crafted MIPS program can span distinct valid segments, causing the host read or write to cross an allocated buffer boundary and expose memory or interrupt SPIM.

The record

CVE
CVE-2025-29364
Published
Aug 28, 2025
Updated
Aug 28, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-121, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 28, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 28, 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?

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

6.5UbuntuCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-121Stack-based Buffer Overflow
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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