CVE-2025-7616Public exploit

Process crash via invalid condition-variable destruction

Published Jul 14, 2025 · Updated Jul 15, 2025

Memory corruption in snap7-rs 1.142.0 and 1.142.1 allows local users to crash a consuming process through S7Partner API calls. The S7Partner destructor reaches pthread_cond_destroy with invalid native state after a fuzzed create, start_to, and stop call sequence. Reproduction requires a local harness that invokes unsafe Rust bindings with crafted addresses and ports; the demonstrated consequence is a segmentation fault.

CVSS severity7.5
High
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory corruption in snap7-rs 1.142.0 and 1.142.1 allows local users to crash a consuming process through S7Partner API calls. The S7Partner destructor reaches pthread_cond_destroy with invalid native state after a fuzzed create, start_to, and stop call sequence. Reproduction requires a local harness that invokes unsafe Rust bindings with crafted addresses and ports; the demonstrated consequence is a segmentation fault.

The record

CVE
CVE-2025-7616
Published
Jul 14, 2025
Updated
Jul 15, 2025
Vendor
gmg137
Product
snap7-rs
Classifications
CWE-119, T1499.004
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Jul 14, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 15, 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=1.142.0
  2. Affected versionversion=1.142.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

gmg137 · snap7-rsversion=1.142.0; version=1.142.1

Published CVSS scores

2.0VulDBCVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
5.2VulDBAV:A/AC:L/Au:S/C:P/I:P/A:P
7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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.

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)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1499.004Endpoint Denial of Service: Application 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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