CVE-2020-6958

Name: CVE-2020-6958
Creator: NVD / NIST
Published: 2020-01-14T00:15:11.41+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.1/10EPSS 2.35%

Last modified Jun 17, 2026

CVE-2020-6958 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. An XXE vulnerability in JnlpSupport in Yet Another Java Service Wrapper (YAJSW) 12.14, as used in NSA Ghidra and other products, allows attackers to exfiltrate data from remote hosts and potentially cause denial-of-service.. EPSS estimates a 2.35% chance of exploitation in the next 30 days.

Description

An XXE vulnerability in JnlpSupport in Yet Another Java Service Wrapper (YAJSW) 12.14, as used in NSA Ghidra and other products, allows attackers to exfiltrate data from remote hosts and potentially cause denial-of-service.

Metrics

CVSS 3.1

9.1/10

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

EPSS Probability

2.35%

81.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-611

Affected Software

Vendor	Product	Versions
Yet Another Java Service Wrapper Project	Yet Another Java Service Wrapper	12.14

References

https://github.com/NationalSecurityAgency/ghidra/issues/943Exploit, Third Party Advisory
https://github.com/purpleracc00n/Exploits-and-PoC/blob/master/XXE%20in%20YAJSW%E2%80%99s%20JnlpSupport%20affects%20Ghidra%20Server.mdThird Party Advisory
https://sourceforge.net/p/yajsw/bugs/166/Exploit, Third Party Advisory
https://github.com/NationalSecurityAgency/ghidra/issues/943Exploit, Third Party Advisory
https://github.com/purpleracc00n/Exploits-and-PoC/blob/master/XXE%20in%20YAJSW%E2%80%99s%20JnlpSupport%20affects%20Ghidra%20Server.mdThird Party Advisory
https://sourceforge.net/p/yajsw/bugs/166/Exploit, Third Party Advisory

Timeline

Published: Jan 14, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-6958?

How severe is CVE-2020-6958?

CVE-2020-6958 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 2.35% probability of exploitation in the next 30 days.

How do I fix CVE-2020-6958?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-6958?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST