CVE-2026-90572CWE-119

CVE-2026-90572

Medium · published September 13, 2026

CVSS v3.1
4.7
EPSS
0%
Percentile
35.0
In the wild
Unconfirmed
What it is

A vulnerability was determined in davenardella snap7 up to 1.4.3. The affected element is the function TSnap7MicroClient::opUpload of the file src/core/s7_micro_client.cpp. Executing a manipulation of the argument DataLen can lead to memory corruption. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.

The record
Technical detail
CVSS v3.1
4.7 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0
5.1 · CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
EPSS
0.00418 · 35.0th percentile
Weakness
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer
Published
2026-09-13T22:16Z
References (6)
https://github.com/davenardella/snap7/ · [email protected]https://github.com/davenardella/snap7/issues/30 · [email protected]https://vuldb.com/cve/CVE-2026-90572 · [email protected]https://vuldb.com/submit/912711 · [email protected]https://vuldb.com/vuln/403157 · [email protected]https://vuldb.com/vuln/403157/cti · [email protected]
EPSS history
Timeline
  • 15 SEP 03:22Z
    EPSS moved — → 0%
    epss
  • 13 SEP 17:15Z
    davenardella snap7 s7_micro_client.cpp opUpload memory corruption
    cvelistv5