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CVE-2021-35564

22
FAUCET Score

CVE-2021-35564 is a vulnerability in the Keytool component of Oracle Java SE and Oracle GraalVM Enterprise Edition, affecting versions 7u311, 8u301, 11.0.12, 17, 20.3.3, and 21.2.0 respectively. This easily exploitable flaw allows an unauthenticated attacker with network access to compromise these products. Successful exploitation can lead to unauthorized data modification (update, insert, or delete) within accessible data, primarily impacting Java deployments running untrusted code in sandboxed environments or via specific API calls. The vulnerability has a CVSS 3.1 Base Score of 5.3 (Medium), indicating low integrity impact and no confidentiality or availability impact. Its attack vector is network-based with low attack complexity, requiring no privileges or user interaction. Currently, there is no evidence of active exploitation, no public exploit code (Metasploit, Nuclei, ExploitDB), and minimal community discussion or media coverage. The EPSS score is very low, suggesting a low probability of exploitation in the wild.

Impacted Technologies

VendorProductVersion(s)CPE
20.3.3CPE matchmatch criteria
cpe:2.3:a:oracle:graalvm:20.3.3:*:*:*:enterprise:*:*:*
21.2.0CPE matchmatch criteria
cpe:2.3:a:oracle:graalvm:21.2.0:*:*:*:enterprise:*:*:*
7CPE matchmatch criteria
cpe:2.3:a:oracle:openjdk:7:update311:*:*:*:*:*:*
8CPE matchmatch criteria
cpe:2.3:a:oracle:openjdk:8:update301:*:*:*:*:*:*
11.0.12CPE matchmatch criteria
cpe:2.3:a:oracle:openjdk:11.0.12:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
5.24%
Probability of exploitation in next 30 days
EPSS Percentile
91.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0524 is in the 88th percentile among its peer group of 23,725 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (22)

oraclepatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Build of OpenJDK 11.0.13
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Build of OpenJDK 17.0.1Fixed in: linux
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Build of OpenJDK 17.0.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Build of OpenJDK 8u312
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: java-1.8.0-openjdk-1:1.8.0.312.b07-1.el7_9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: java-11-openjdk-1:11.0.13.0.8-1.el7_9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7 SupplementaryFixed in: java-1.8.0-ibm-1:1.8.0.7.0-1jpp.1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7 SupplementaryFixed in: java-1.7.1-ibm-1:1.7.1.5.0-1jpp.1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: java-11-openjdk-1:11.0.13.0.8-1.el8_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: java-1.8.0-openjdk-1:1.8.0.312.b07-1.el8_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: java-17-openjdk-1:17.0.1.0.12-2.el8_5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: java-1.8.0-ibm-1:1.8.0.7.0-1.el8_5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.1 Extended Update SupportFixed in: java-1.8.0-openjdk-1:1.8.0.312.b07-1.el8_1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.1 Extended Update SupportFixed in: java-11-openjdk-1:11.0.13.0.8-1.el8_1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.2 Extended Update SupportFixed in: java-1.8.0-openjdk-1:1.8.0.312.b07-1.el8_2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.2 Extended Update SupportFixed in: java-11-openjdk-1:11.0.13.0.8-1.el8_2
View patch
redhatno patchvia redhat_api
Product: Red Hat build of OpenJDK 11Fixed in: Linux
redhatno patchvia redhat_api
Product: Red Hat build of OpenJDK 11Fixed in: Windows
redhatno patchvia redhat_api
Product: Red Hat build of OpenJDK 17Fixed in: windows
redhatno patchvia redhat_api
Product: Red Hat build of OpenJDK 1.8Fixed in: Linux
redhatno patchvia redhat_api
Product: Red Hat build of OpenJDK 1.8Fixed in: Windows

Vendor Advisories (1)

redhatCVE-2021-35564Moderate

OpenJDK: Certificates with end dates too far in the future can corrupt keystore (Keytool, 8266137)

Oct 19, 2021

References

lists.debian.org / debian-lts-announce/2021/11/msg00008.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/6EUURAQOIJYFZHQ7DFZCO6IKDPIAWTNK
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/7WTVCIVHTX3XONYOEGUMLKCM4QEC6INT
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/DJILEHYV2U37HKMGFEQ7CAVOV4DUWW2O
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/GTYZWIXDFUV2H57YQZJWPOD3BC3I3EIQ
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/GXTUWAWXVU37GRNIG4TPMA47THO6VAE6
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/V362B2BWTH5IJDL45QPQGMBKIQOG7JX5
security.gentoo.org / glsa/202209-05
Third Party Advisory
security.netapp.com / advisory/ntap-20211022-0004
Third Party Advisory
security.netapp.com / advisory/ntap-20240621-0006
debian.org / security/2021/dsa-5000
Third Party Advisory
debian.org / security/2021/dsa-5012
Third Party Advisory
oracle.com / security-alerts/cpuoct2021.html
PatchVendor Advisory