CVE-2020-4534

At a glance

Severity: HIGH 7.8
EPSS: EPSS 0.41 % · percentile 35 (2026-10-27)
State: PUBLISHED
Published: 2020-08-03
Updated: 2024-09-17
Assigner: ibm
NVD status: Modified

Description

IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 could allow a local authenticated attacker to gain elevated privileges on the system, caused by improper handling of UNC paths. By scheduling a task with a specially-crafted UNC path, an attacker could exploit this vulnerability to execute arbitrary code with higher privileges. IBM X-Force ID: 182808.

Scores

Version	Score	Vector	Scored by
CVSS 3.0	HIGH 7.8	CVSS:3.0/A:H/UI:N/I:H/S:C/PR:L/AV:L/AC:H/C:H/RC:C/RL:O/E:U	ibm
CVSS 3.1	HIGH 8.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H	NVD · nvd@nist.gov (Primary)
CVSS 3.0	HIGH 7.8	CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H	NVD · psirt@us.ibm.com (Secondary)
CVSS 2.0	HIGH 7.2	AV:L/AC:L/Au:N/C:C/I:C/A:C	NVD · nvd@nist.gov (Primary)

European references

ENISA EUVD · EUVD-2020-25781
GCVE · GCVE-0-2020-4534

CERT-FR advisories

CERTFR-2021-AVI-431 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
CERTFR-2020-AVI-677 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
CERTFR-2020-AVI-481 — Vulnérabilité dans IBM WebSphere · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:a:ibm:websphere_application_server:7.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server:8.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server:8.5:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server:9.0:*:*:*:*:*:*:*

Affected products

Product	Versions
IBM · WebSphere Application Server	affected 7.0 ; affected 8.0 ; affected 8.5 ; affected 9.0

References

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD