HOMEVULNERABILITIESCVE-2026-27662
HIGH

CVE-2026-27662

CWE-1188Published: May 12, 2026· Updated: May 12, 2026

7.7
CVSS v3.1
EPSS:0.03%probability of exploitation in 30 daysPercentile:7.3th

Official Description

Affected devices do not properly restrict access to the web browser via the Control Panel when no corresponding security mechanisms are in place.

This could allow an unauthenticated attacker to gain unauthorized access to the web browser, potentially enabling the discovery of backdoors, performing unauthorized actions, or exploiting misconfigurations that may lead to further system compromise.

NVD Source

Technical Analysis

CVE-2026-27662 requires local access, meaning attackers must already have a foothold on the target system.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.7.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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All References (1)

→
https://cert-portal.siemens.com/productcert/html/ssa-387223.html

Quick Facts

CVE IDCVE-2026-27662
CVSS Score7.7 / 10
SeverityHIGH
WeaknessCWE-1188
CISA KEVNo
EPSS (30d)0.03%
PublishedMay 12, 2026

Related CVEs (CWE-1188)

CVE-2026-31957
10.0
CVE-2026-44109
9.8
CVE-2026-28775
9.8
CVE-2026-32046
9.8
CVE-2025-70998
9.8
CVE-2026-39920
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-27662 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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