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Back to active CVEs
Critical · CVSS 9.3CVE-2026-16876

CISA ADP VulnrichmentCVE-2026-16876

Answer in brief

CVE-2026-16876 records a Critical severity (CVSS 9.3) vulnerability in CISA ADP Vulnrichment. The current sources do not mark it as known exploited. The current feed maps NEC Corporation/UNIVERGE IX-R/IX-V (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 Sep 7, 2026Updated Sep 9, 2026Source checked Oct 24, 2026First seen by HOL Sep 7, 2026Material review Sep 9, 2026
Upstream Advisory

Key facts

Risk
Critical · CVSS 9.3
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

CVSS is 9.3. 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 NEC Corporation/UNIVERGE IX-R/IX-V (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
NEC Corporation/UNIVERGE IX-R/IX-VgenericAll versions from Ver1.1 through Ver1.3 All versions from Ver1.4.21 through Ver1.4.28 and Ver1.5.23Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for NEC Corporation/UNIVERGE IX-R/IX-V.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Sep 7, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Sep 9, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 7, 2026

Sources and claim methodology

  • Source referencejpn.nec.com
Upstream source description

An authentication bypass vulnerability exists in the WebGUI of Series UNIVERGE IX-R/IX-V. A user could bypass authentication and execute arbitrary CLI commands by tampering with WebGUI messages and sending them to the device via internet.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • WireGuard peer endpoint learned from unauthenticated transport-data messages allows off-path tunnel hijack in ZephyrAlso CWE-306

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-306
Source
CVE List V5
Source checked
Oct 24, 2026
References
1 linked source
Open source record