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CVE-2021-21083Adobe Experience Manager broken access control in DSRPReindexServlet could lead to denial-of-service

Description

AEM's Cloud Service offering, as well as versions 6.5.7.0 (and below), 6.4.8.3 (and below) and 6.3.3.8 (and below) are affected by an Improper Access Control vulnerability. An unauthenticated attacker could leverage this vulnerability to cause an application denial-of-service in the context of the current user.

Timeline

  1. ID reserved

    By adobe

  2. · 6 months later

    Published

  3. · 3 years later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2021-21083, by who scored it
Scored byCVSSScoreVector
adobeCNA (assigner)3.1High7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVDNVD · Modified3.1High7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
2.0% · top 19% of all CVEs (14 Nov 2026)
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.

Affected products

  • Adobe · Experience Manager

    • affected unspecified – ≤ 6.3.3.8
    • affected unspecified – ≤ 6.4.8.3
    • affected unspecified – ≤ 6.5.7.0
    • affected unspecified – ≤ AEM Cloud Service

References

References1

Sources

The same CVE in the primary databases and aggregators, to check against.

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[![CVE-2021-21083](https://cveledger.app/badge/CVE-2021-21083.svg)](https://cveledger.app/cve/CVE-2021-21083)

Record last updated .