CVE-2025-34226

HIGH 1 PoC
MEDIUM Priority: 0.05 BB Relevance: 74/100
Published: 2025-10-03 Modified: 2026-11-08 First seen: 2026-11-08 Status: active

Attack Surface

Network Low Complexity No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: None
AT: None
VC: None
VI: Low
VA: High

Description

OpenPLC Runtime v3 contains an input validation flaw in the /upload-program-action endpoint: the epoch_time field supplied during program uploads is not validated and can be crafted to induce corruption of the programs database. After a successful malformed upload the runtime continues to operate until a restart; on restart the runtime can fail to start because of corrupted database entries, resulting in persistent denial of service requiring complete rebase of the product to recover. This vulnerability was remediated by commit 095ee09.

Affected Software (1)

VendorProductVersion
Autonomy Logic OpenPLC Runtime 3.0 < 095ee09623dd229b64ad3a1db38a901a3772f6fc

Proof of Concept (1)

Bug Bounty Relevance

74 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction
✓ PoC available (1)

CVSS Score

7.1 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N

EPSS — Exploitation Probability

0.68%
Raw Score 0.006780
Percentile 52.9%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00678
2026-11-12
0.00678
2026-11-10
0.00678
2026-11-09
0.00678
2026-11-08
0.00678

Intelligence Sources

mitre ref →