CVE-2016-6814
When an application with unsupported Codehaus versions of Groovy from 1.7.0 to 2.4.3, Apache Groovy 2.4.4 to 2.4.7 on classpath uses standard Java serialization mechanisms, e.g. to communicate between servers or to store local data, it was possible for…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 17.2%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
Description
When an application with unsupported Codehaus versions of Groovy from 1.7.0 to 2.4.3, Apache Groovy 2.4.4 to 2.4.7 on classpath uses standard Java serialization mechanisms, e.g. to communicate between servers or to store local data, it was possible for an attacker to bake a special serialized object that will execute code directly when deserialized. All applications which rely on serialization and do not isolate the code which deserializes objects were subject to this vulnerability.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 17.24% probability · 97th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-502
- Affected
- apache/groovy · redhat/enterprise linux server
- Source
- cve@mitre.org
EPSS moved from 15.9% on 21 September 2026 to 17.2% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- http://mail-archives.apache.org/mod_mbox/www-announce/201701.mbox/%3CCADRx3PMZ2hBCGDTY35zYXFGaDnjAs0tc5-upaVs6QN2sYUejyA%40mail.gmail.com%3EPatch, Vendor Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0272.htmlBroken Link
- http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html
- http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
- http://www.securityfocus.com/bid/95429Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039600Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:0868Broken Link
- https://access.redhat.com/errata/RHSA-2017:2486Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2596Third Party Advisory
- https://security.gentoo.org/glsa/202003-01
- https://www.oracle.com/security-alerts/cpujan2020.html
- https://www.oracle.com/security-alerts/cpujul2020.html
- https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
- https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
- http://mail-archives.apache.org/mod_mbox/www-announce/201701.mbox/%3CCADRx3PMZ2hBCGDTY35zYXFGaDnjAs0tc5-upaVs6QN2sYUejyA%40mail.gmail.com%3EPatch, Vendor Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0272.htmlBroken Link
- http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html
- http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
- http://www.securityfocus.com/bid/95429Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039600Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:0868Broken Link
- https://access.redhat.com/errata/RHSA-2017:2486Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2596Third Party Advisory
- https://security.gentoo.org/glsa/202003-01
- https://www.oracle.com/security-alerts/cpujan2020.html
- https://www.oracle.com/security-alerts/cpujul2020.html
- https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.