Local privilege escalation via improper input sanitization in execl() call (CVE-2026-16455) | HOL Guard CVE

Medium · CVSS 6.9CVE-2026-16455

Local privilege escalation via improper input sanitization in execl() call

Answer in brief

CVE-2026-16455 records a Medium severity (CVSS 6.9) vulnerability in Local privilege escalation via improper input sanitization in execl() call. The current sources do not mark it as known exploited. The current feed maps Teltonika Networks/RUTOS (generic), Teltonika Networks/TSWOS (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 13, 2026Updated Sep 8, 2026Source checked Sep 27, 2026First seen by HOL Aug 13, 2026Material review Sep 8, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 6.9
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Not reported

Why this deserves its current priority

CVSS is 6.9. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Teltonika Networks/RUTOS (generic), Teltonika Networks/TSWOS (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Teltonika Networks/RUTOSgeneric	RUTOS 7.07.1	Not reported
Teltonika Networks/TSWOSgeneric	1.03	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Teltonika Networks/RUTOS, Teltonika Networks/TSWOS.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Aug 13, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 8, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 13, 2026

Sources and claim methodology

Source referenceteltonika-networks.com

Upstream source description

In Teltonika Networks RUTOS devices running versions 7.07.1 through 7.24.1 and TSWOS devices running versions 1.03 through 1.10, a vulnerability exists whereby a lower privileged user can escalate privileges to administrative level due to unsafe calls to an execl function.

Quoted source text, attributed separately from HOL analysis.