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CVE Record

CVE-2021-2480: Vulnerability in the Oracle HTTP Server product of Oracle Fusion Middleware (component: Web Listener).

Vulnerability in the Oracle HTTP Server product of Oracle Fusion Middleware (component: Web Listener). The supported version that is affected is 11.1.1.9.0. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle HTTP Server. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle HTTP Server accessible data. CVSS 3.1 Base Score 3.7 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N).

LowCVSS 3.7Not KEV-listedUpdated
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Glexia's TakeAutomated analysislow

Security readout for executives and security teams

Plain-English summary

CVE-2021-2480 affects Oracle HTTP Server 11.1.1.9.0. An unauthenticated attacker with HTTP network access could, in difficult conditions, alter some data accessible through the server. The reported impact is limited to integrity; the sources do not identify confidentiality loss, service outage, or active exploitation.

Executive priority

Treat this as a lower-severity legacy middleware issue that still deserves cleanup if exposed. It is not presented as actively exploited, but unauthorized data modification through an HTTP-facing server can create business integrity risk.

Technical view

The vulnerability is in Oracle Fusion Middleware Oracle HTTP Server, Web Listener component, version 11.1.1.9.0. CVSS 3.1 is 3.7: network attack vector, high attack complexity, no privileges, no user interaction, unchanged scope, low integrity impact, no confidentiality or availability impact.

Likely exposure

Exposure is most likely in environments still running Oracle HTTP Server 11.1.1.9.0 with HTTP reachable from untrusted networks or internal users. The bundle names no other versions or products.

Exploitation context

The CVE describes exploitation as difficult and requiring network access via HTTP. CISA KEV status is false, and the provided sources do not cite known active exploitation or public exploit availability.

Researcher notes

The source bundle provides limited technical detail: no CWE, no root cause, and no exploit mechanics. Analysis should stay focused on affected-version confirmation, HTTP reachability, Oracle CPU remediation status, and integrity-impact review without assuming broader product exposure.

Mitigation direction

  • Check Oracle October 2021 CPU guidance for applicable Oracle HTTP Server remediation.
  • Inventory Oracle HTTP Server instances and confirm whether version 11.1.1.9.0 is present.
  • Reduce HTTP exposure to trusted networks where business requirements allow.
  • Review integrity monitoring for data accessible through affected HTTP Server deployments.
  • Prioritize vendor-supported updates or upgrade paths over custom workarounds.

Validation and detection

  • Confirm product and version from Oracle HTTP Server asset records.
  • Map which affected instances accept HTTP from untrusted networks.
  • Verify Oracle CPU remediation status for each identified instance.
  • Review logs for unexpected update, insert, or delete activity.
  • Document compensating controls where vendor remediation is pending.
Prepared
Confidence
high
Sources
3

Public sources used

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.

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CVE-2021-2480 mapping review

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

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Vulnerability profileCVE Program record
Severity
Low
CVSS
3.7 (3.1)
Known Exploited
No
Published

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

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
2Source 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
3.7CVSS 3.1LowCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N2.21.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

3.7Low
CVSS 3.1 vector shape for CVE-2021-2480Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Oracle CorporationHTTP Server11.1.1.9.0Listed
Weakness

CWE details

No CWE listed

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