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CVE-2026-55728

Loytec LINX firmware: Stack-based Buffer Overflow in cmd_ipaddr_conflict

LOW
3.8
CVSS Score
Published: July 24, 2026 at 01:58 PM UTC
Updated: July 27, 2026 at 08:44 PM UTC
8 products affected across 1 vendorL-IOBL-PADL-GATE

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Severity
LOW3.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

Stack-based Buffer Overflow (CWE-121) in `/usr/bin/ltsudo` `cmd_ipaddr_conflict` in Loytec LIP-ME201C, L-INX, L-GATE, L-ROC, L-IOB, L-DALI, L-VIS and L-PAD through 8.4.16 on LINX-A64 allows a `superadmin`-group attacker to trigger a SUID-root process abort or potentially elevate privileges via an overly long interface-name argument.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

L-DALI· Loytec
60%
v ≤ 8.4.16
L-GATE· Loytec
60%
v ≤ 8.4.16
L-INX· Loytec
60%
v ≤ 8.4.16
L-IOB· Loytec
60%
v ≤ 8.4.16
L-PAD· Loytec
60%
v ≤ 8.4.16
L-ROC· Loytec
60%
v ≤ 8.4.16
L-VIS· Loytec
60%
v ≤ 8.4.16
LIP-ME20xC· Loytec
60%
v ≤ 8.4.16

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: cverecord
https://www.loytec.com/support/product-security/advisories/8523-dibt-cve-20260526-0005-stack-buffer-overflow-in-cmd_ipaddr_conflict-low

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

3.8LOWNCSC.ch
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-121

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