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CVE-2021-2303 Oracle OSS Support Tools

Affected softwareOracle OSS Support Tools
Affected versionsPrior to 2.12.41
Severity4.9 Medium CVSS 3.1 2 scores
Fixed inOracle Critical Patch Update April 2021
Published22 Apr 2021
Updated17 Jun 2026

Description

Vulnerability in the OSS Support Tools product of Oracle Support Tools (component: Diagnostic Assistant). The supported version that is affected is Prior to 2.12.41. Easily exploitable vulnerability allows high privileged attacker with network access via HTTP to compromise OSS Support Tools. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all OSS Support Tools accessible data. CVSS 3.1 Base Score 4.9 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N).

Exploitation status

No public exploit

No exploit has been reported in the sources we check. Published 5 years ago.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment exploitation: none
  • Indexed PoC none indexed
  • EPSS 1.6% chance in 30 days

Waratek protection

No exploit published

Within Waratek scope. In the sources we check, nobody has published exploit code for this CVE or reported it being exploited.

This is a proprietary Oracle product. Oracle's security advisory is the source of public detail for this CVE.

  • Protection none
  • Action not pursued
  • Review automated Upstream data
  • Record active
Decided by Nothing to build a rule from yet: no published exploit, no CISA record of exploitation and no source-level change to read
Finding This CVE affects a known product, but nothing published names a fix and nothing published shows an exploit. That is a statement about the evidence, not about the defect — it does not mean the vulnerability is unimportant or unreachable, only that neither of the two things VRT can act on exists.

CVSS

4.9 MEDIUM v3.1 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N 2 metrics

We show the highest score from the newest CVSS version. Scores from different versions can't be compared, and the first score listed is sometimes a 0.0 placeholder.

VersionScoreBandVectorAssignerType
CVSS 3.1 4.9 MEDIUM CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N secalert_us@oracle.com Secondary published
CVSS 2.0 4.0 none AV:N/AC:L/Au:S/C:P/I:N/A:N NVD Primary

Affected software and releases

Oracle advisories

AdvisoryTypeQuarterProducts Oracle names in its risk matrix
Oracle Critical Patch Update April 2021 ↗ CPU 2021-Q2 Oracle Support Tools / Diagnostic Assistant (Prior to 2.12.41)

Oracle components and versions

FamilyComponentVersions, as Oracle lists themRead as
Oracle Support Tools Diagnostic Assistant Prior to 2.12.41

Products and versions

1 product, 1 version entry
SourceVendorProductSchemeAffected versions
nvd oracle oss support tools generic < 2.12.41

References

URLTags
https://www.oracle.com/security-alerts/cpuapr2021.html Patch, Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-458/ Third Party Advisory, VDB Entry

Timeline

Published2021-04-22By the CVE Program.
NVD record modified2026-06-17NVD's own last-modified date for this record.