CVE-2020-14621

CVE-2020-14621 is a medium-severity vulnerability in Oracle Openjdk with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

• Severity: Medium (CVSS 3.x base score 5.3)
• CVSS v2: 5.0
• EPSS exploit prediction: 4% (90th percentile)
• Actively exploited: Not listed in CISA KEV
• Affected product: Oracle Openjdk
• Published: 2020-07-15
• Last modified: 2026-06-17

Description

Vulnerability in the Java SE, Java SE Embedded product of Oracle Java SE (component: JAXP). Supported versions that are affected are Java SE: 7u261, 8u251, 11.0.7 and 14.0.1; Java SE Embedded: 8u251. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Java SE, Java SE Embedded accessible data. 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 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N).

Frequently asked questions

What is CVE-2020-14621?

Vulnerability in the Java SE, Java SE Embedded product of Oracle Java SE (component: JAXP). Supported versions that are affected are Java SE: 7u261, 8u251, 11.0.7 and 14.0.1; Java SE Embedded: 8u251. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Java SE, Java SE Embedded accessible data. 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 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N).

How severe is CVE-2020-14621?

CVE-2020-14621 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2020-14621 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-14621?

CVE-2020-14621 primarily affects Oracle Openjdk. In total, 125 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-14621?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-14621 published?

CVE-2020-14621 was published on 2020-07-15 and last updated on 2026-06-17.

References

• http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00019.html
• http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00027.html
• http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00041.html
• https://kc.mcafee.com/corporate/index?page=content&id=SB10332
• https://lists.apache.org/thread.html/rf96c5afb26b596b4b97883aa90b6c0b0fc4c26aaeea7123c21912103%40%3Cj-users.xerces.apache.org%3E
• https://lists.debian.org/debian-lts-announce/2020/08/msg00021.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6CFJPOYF3CWYEPCDOAOCNFJTQIKKWPHW/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DFZ36XIW5ENQAW6BB7WHRFFTTJX7KGMR/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MEPHBZPNSLX43B26DWKB7OS6AROTS2BO/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QQUMIAON2YEFRONMIUVHAKYCIOLICDBA/
• https://security.gentoo.org/glsa/202008-24
• https://security.gentoo.org/glsa/202209-15
• https://security.netapp.com/advisory/ntap-20200717-0005/
• https://usn.ubuntu.com/4433-1/
• https://usn.ubuntu.com/4453-1/
• https://www.debian.org/security/2020/dsa-4734
• https://www.oracle.com/security-alerts/cpujul2020.html

Affected products (125)

• cpe:2.3:a:oracle:openjdk:7:-:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update1:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update10:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update101:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update11:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update111:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update121:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update13:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update131:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update141:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update15:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update151:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update161:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update17:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update171:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update181:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update191:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update2:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update201:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update21:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update211:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update221:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update231:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update241:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update25:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update251:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:7:update261:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:8:-:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:8:milestone1:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:8:milestone2:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:8:milestone3:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:8:milestone4:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:8:milestone5:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:8:milestone6:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:8:milestone7:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:8:milestone8:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:8:milestone9:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:8:update101:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:8:update102:*:*:*:*:*:*
• cpe:2.3:a:oracle:openjdk:8:update11:*:*:*:*:*:*

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