CVE-2026-16225: Out-of-bounds Write in davenardella snap7
A security flaw has been discovered in davenardella snap7 up to 1.4.3. The impacted element is the function TSnap7Peer::NegotiatePDULength of the file src/core/s7_peer.cpp. The manipulation of the argument PDULength results in out-of-bounds write. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks.
CVE-2026-16225: Out-of-bounds Write in davenardella snap7
Description
A security flaw has been discovered in davenardella snap7 up to 1.4.3. The impacted element is the function TSnap7Peer::NegotiatePDULength of the file src/core/s7_peer.cpp. The manipulation of the argument PDULength results in out-of-bounds write. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks.
CVSS v4.0
Score 5.3medium
Affected software
pkg:github/davenardella/snap7cpe:2.3:a:davenardella:snap7:*:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-07-18T12:29:33.863Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a5d0a912a4a8d5989eadb46
Added to database: 07/19/2026, 17:34:09 UTC
Last enriched: 07/19/2026, 17:34:34 UTC
Last updated: 09/02/2026, 10:52:07 UTC
Views: 99
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