CVE-2021-35559

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited 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

15.90% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 96.6% of scored records. A rank, not a probability.

NVD base score

5.3 (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:N/I:N/A:L

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

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.

Published

2021-10-20 10:50Z4 YR AGO

Last updated

2024-08-04 00:40Z2 YR AGO

Reserved

2021-06-28

Assigning CNA

oracle

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

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

Weaknesses

• CWE-400Uncontrolled Resource ConsumptionClass
• CWE-770Allocation of Resources Without Limits or ThrottlingBase

Data version

5.1

Document digest

841f5cc4aeaee29de04b00f431e0b105f0164a8c8722e23cfcd88fa6411794f1

• www.oracle.comhttps://www.oracle.com/security-alerts/cpuoct2021.html
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20211022-0004/
• lists.fedoraproject.orgFEDORA-2021-35145352b0https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7WTVCIVHTX3XONYOEGUMLKCM4QEC6INT/vendor-advisory
• lists.fedoraproject.orgFEDORA-2021-7701833090https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GTYZWIXDFUV2H57YQZJWPOD3BC3I3EIQ/vendor-advisory
• lists.fedoraproject.orgFEDORA-2021-9a51a6f8b1https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V362B2BWTH5IJDL45QPQGMBKIQOG7JX5/vendor-advisory
• lists.fedoraproject.orgFEDORA-2021-1cc8ffd122https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6EUURAQOIJYFZHQ7DFZCO6IKDPIAWTNK/vendor-advisory
• lists.fedoraproject.orgFEDORA-2021-eb3e3e87d3https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DJILEHYV2U37HKMGFEQ7CAVOV4DUWW2O/vendor-advisory
• lists.fedoraproject.orgFEDORA-2021-107c8c5063https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GXTUWAWXVU37GRNIG4TPMA47THO6VAE6/vendor-advisory
• www.debian.orgDSA-5000https://www.debian.org/security/2021/dsa-5000vendor-advisory
• lists.debian.org[debian-lts-announce] 20211109 [SECURITY] [DLA 2814-1] openjdk-8 security updatehttps://lists.debian.org/debian-lts-announce/2021/11/msg00008.htmlmailing-list
• www.debian.orgDSA-5012https://www.debian.org/security/2021/dsa-5012vendor-advisory
• security.gentoo.orgGLSA-202209-05https://security.gentoo.org/glsa/202209-05vendor-advisory
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20240621-0006/