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CVE Record

CVE-2026-25085: Copeland XWEB and XWEB Pro Unexpected Status Code or Return Value

A vulnerability exists in Copeland XWEB Pro version 1.12.1 and prior, in which an unexpected return value from the authentication routine is later on processed as a legitimate value, resulting in an authentication bypass.

HighCVSS 8.6Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2026-25085 is an authentication bypass in Copeland XWEB Pro. A remote attacker may be able to access the system without valid credentials because an authentication error value is treated as legitimate. This matters for organizations using XWEB Pro to monitor or manage refrigeration or facility equipment.

Executive priority

Prioritize this for prompt assessment if Copeland XWEB Pro is used in operational environments. Authentication bypass in OT-adjacent management systems can create business risk, especially when exposed remotely. Highest priority should go to internet-facing or vendor-accessible deployments.

Technical view

Copeland XWEB Pro version 1.12.1 and prior contains CWE-394: an unexpected return value from the authentication routine is later processed as valid. The CVSS 3.1 score is 8.6, with network attack vector, low complexity, no privileges, and no user interaction required.

Likely exposure

Exposure is most relevant where Copeland XWEB Pro 1.12.1 or earlier is network reachable, especially from untrusted networks. The source bundle lists XWEB 300D PRO, 500D PRO, and 500B PRO, but affected version metadata is unclear, so product inventory should be verified against vendor guidance.

Exploitation context

The vulnerability is remotely reachable and does not require credentials or user interaction. The provided sources do not show CISA KEV listing or confirmed active exploitation. Treat internet-exposed or broadly reachable deployments as higher urgency until vendor guidance and local exposure are confirmed.

Researcher notes

Evidence supports a high-severity authentication bypass in XWEB Pro 1.12.1 and prior. The affected-product entries in the bundle appear incomplete or ambiguous, so avoid over-scoping without checking the Copeland and CISA advisories. No public exploitation is confirmed by the provided sources.

Mitigation direction

  • Check Copeland’s software update page and CISA advisory for the current fixed version or vendor instructions.
  • Update affected XWEB Pro systems according to Copeland guidance when an applicable update is available.
  • Remove direct internet exposure for XWEB systems.
  • Restrict access to trusted management networks or VPN-controlled paths.
  • Apply OT network segmentation and firewall rules limiting access to required administrators only.
  • Monitor authentication logs and management access for unusual activity.

Validation and detection

  • Inventory Copeland XWEB and XWEB Pro devices and record software versions.
  • Identify any XWEB Pro systems running version 1.12.1 or prior.
  • Confirm whether XWEB interfaces are reachable from the internet or untrusted networks.
  • Verify updates or mitigations against Copeland and CISA advisory instructions.
  • Review recent authentication and administrative activity for anomalies.
Prepared
Confidence
medium
Sources
5

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-394: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-25085 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
8.6 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
4Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
8.6CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L3.94.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

8.6High
CVSS 3.1 vector shape for CVE-2026-25085Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
CopelandCopeland XWEB 300D PRO0unaffected
CopelandCopeland XWEB 500D PRO0unaffected
CopelandCopeland XWEB 500B PRO0unaffected
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-394 · source CWE mapping

Unexpected Status Code or Return Value

Unexpected Status Code or Return Value represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.