SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-35559

Vulnerability in the Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Swing).

MEDIUM 5.3EPSS 15.9%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 15.9%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.

Description

Vulnerability in the Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Swing). Supported versions that are affected are Java SE: 7u311, 8u301, 11.0.12, 17; Oracle GraalVM Enterprise Edition: 20.3.3 and 21.2.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols 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 applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability can also be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. 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).

CVSS 3.1
5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS
15.90% probability · 97th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-400
Affected
oracle/graalvm · oracle/openjdk · netapp/active iq unified manager · netapp/e-series santricity os controller · netapp/e-series santricity storage manager · netapp/e-series santricity web services · netapp/hci management node · netapp/oncommand insight · netapp/oncommand workflow automation · netapp/santricity unified manager · netapp/snapmanager · netapp/solidfire · debian/debian linux · fedoraproject/fedora
Source
secalert_us@oracle.com
EPSS trend
0%10%20%3 November 2026: 15.90%3 November 20263 November 2026

EPSS 15.9% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.