HOMEVULNERABILITIESCVE-2021-35565
MEDIUM

CVE-2021-35565

NVD-CWE-noinfoPublished: October 20, 2021· Updated: Jun 17, 2026

5.3
CVSS v3.1

Official Description

Vulnerability in the Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: JSSE). Supported versions that are affected are Java SE: 7u311, 8u301, 11.0.12; Oracle GraalVM Enterprise Edition: 20.3.3 and 21.2.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via TLS to compromise Java SE, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Java SE, Oracle GraalVM Enterprise Edition. Note: This vulnerability can only be exploited by supplying data to APIs in the specified Component without using Untrusted Java Web Start applications or Untrusted Java applets, such as through a web service. CVSS 3.1 Base Score 5.3 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).

NVD Source

Technical Analysis

CVE-2021-35565 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityLow
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected Vendors & Products

Debian1 product(s)
debian linux
Fedora1 product(s)
fedora
netapp10 product(s)
active iq unified managere-series santricity os controllere-series santricity storage managere-series santricity web serviceshci management nodeoncommand insightoncommand workflow automationsantricity unified managersnapmanagersolidfire
Oracle2 product(s)
graalvmopenjdk
Source: NVD CPE · 21 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://www.oracle.com/security-alerts/cpuoct2021.html
PATCHhttps://www.oracle.com/security-alerts/cpuoct2021.html
ADVISORYhttps://lists.debian.org/debian-lts-announce/2021/11/msg00008.html
ADVISORYhttps://security.gentoo.org/glsa/202209-05
ADVISORYhttps://security.netapp.com/advisory/ntap-20211022-0004/
ADVISORYhttps://www.debian.org/security/2021/dsa-5000
ADVISORYhttps://lists.debian.org/debian-lts-announce/2021/11/msg00008.html
ADVISORYhttps://security.gentoo.org/glsa/202209-05
ADVISORYhttps://security.netapp.com/advisory/ntap-20211022-0004/
ADVISORYhttps://www.debian.org/security/2021/dsa-5000

All References (24)

→
https://lists.debian.org/debian-lts-announce/2021/11/msg00008.htmlMailing List · Third Party Advisory
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6EUURAQOIJYFZHQ7DFZCO6IKDPIAWTNK/
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7WTVCIVHTX3XONYOEGUMLKCM4QEC6INT/
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DJILEHYV2U37HKMGFEQ7CAVOV4DUWW2O/
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GTYZWIXDFUV2H57YQZJWPOD3BC3I3EIQ/
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GXTUWAWXVU37GRNIG4TPMA47THO6VAE6/
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V362B2BWTH5IJDL45QPQGMBKIQOG7JX5/
→
https://security.gentoo.org/glsa/202209-05Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20211022-0004/Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20240621-0006/
→
https://www.debian.org/security/2021/dsa-5000Third Party Advisory
→
https://www.oracle.com/security-alerts/cpuoct2021.htmlPatch · Vendor Advisory
→
https://lists.debian.org/debian-lts-announce/2021/11/msg00008.htmlMailing List · Third Party Advisory
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6EUURAQOIJYFZHQ7DFZCO6IKDPIAWTNK/
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7WTVCIVHTX3XONYOEGUMLKCM4QEC6INT/

Quick Facts

CVE IDCVE-2021-35565
CVSS Score5.3 / 10
SeverityMEDIUM
WeaknessNVD-CWE-noinfo
CISA KEVNo
Affected4 vendor(s)
PublishedOct 20, 2021

Related CVEs (NVD-CWE-noinfo)

CVE-2009-0916
10.0
CVE-2005-3463
10.0
CVE-2013-2471
10.0
CVE-2009-1006
10.0
CVE-2009-0752
10.0
CVE-2009-0939
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-35565 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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