Dashboard / CVE-2026-110021

CVE-2026-110021

MEDIUM
MEDIUM Priority: 0.00 BB Relevance: 49/100
Published: 2026-11-04 Modified: 2026-11-12 First seen: 2026-11-04 Status: active

Attack Surface

Low Complexity No Auth No Interaction Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: None
UI: None
S: X
AT: None
VC: None
VI: High
VA: None

Description

PLCnext Engineer checks GSDX manifest reference digests but does not cryptographically verify the XML `SignatureValue` over canonicalized `SignedInfo`. An unauthenticated local attacker can modify signed GSDML content, update its manifest digest, retain the public certificate data, and leave an invalid nonempty `SignatureValue`. PLCnext Engineer prior to 2026.6 reports the package as `Valid` and selects the modified device description for import under the default policy.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
Phoenix Contact PLCnext Engineer 0.0 < 2026.6
Phoenix Contact PLCnext Engineer 0.0 < 2026.6

References & Advisories (1)

Bug Bounty Relevance

49 / 100
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

6.9 / 10.0 v4.0
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.06%
Raw Score 0.000620
Percentile 0.0%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00062
2026-11-13
0.00062
2026-11-12
0.00062
2026-11-10
0.00062
2026-11-09
0.00062
2026-11-08
0.00062
2026-11-07
0.00062
2026-11-06
0.00062
2026-11-05
0.00062
2026-11-04
0.00062

Intelligence Sources

mitre ref →
nvd ref →

External Links