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01 Record

CVE-2023-4501

Authentication bypass in OpenText (Micro Focus) Enterprise Server

CriticalPUBLISHEDCNA: OpenText
CNA base score9.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

02 Description

Authentication bypass in OpenText (Micro Focus) Enterprise Server

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.75% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 55.0% of scored records. A rank, not a probability.
NVD base score
9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-08-04.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2023-09-12 18:05Z3 YR AGO
Last updated
2026-08-04 12:41Z2 MO AGO
Reserved
2023-08-23
Assigning CNA
OpenText
Record state
PUBLISHED
Severity
Critical (CVSS 9.8)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
  • CWE-253Incorrect Check of Function Return ValueBase
  • CWE-287Improper AuthenticationClass
  • CWE-305Authentication Bypass by Primary WeaknessBase
  • CWE-358Improperly Implemented Security Check for StandardBase
Data version
5.2
Document digest
f36464c3ed54e2878f154d2d137b1151754ea6cbc69a16a39648ec2d5c263cae

05 Affected products

VendorProductVersionsPlatforms
OpenTextVisual COBOL, COBOL Server, Enterprise Developer, Enterprise Server7.0.19 to < 7.0.21, 8.0.8 to < 8.0.10, 9.0.1 to < 9.0.2Windows, Linux, AIX Solaris HP-UX
opentextvisual_cobal_cobal_server_enterprise_developer_enterprise_server7.0.19 to < 7.0.21, 8.0.8 to < 8.0.10, 9.0.1 to < 9.0.2—

06 References

07 Remediation

Install 7.0 Patch Update 21, 8.0 Patch Update 10, or 9.0 Patch Update 2, or later, when available. Hotfix overlays are available now for common platforms and can be produced for other platforms; contact OpenText Support to request a hotfix overlay.