CVE-2017-18349
parseObject in Fastjson before 1.2.25, as used in FastjsonEngine in Pippo 1.11.0 and other products, allows remote attackers to execute…
- 9.8CriticalCVSS base score
- 38.8%Exploitation in 30 daysEPSS · top 1.4% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 1Public exploitsMetasploit, Nuclei and Exploit-DB
Description
parseObject in Fastjson before 1.2.25, as used in FastjsonEngine in Pippo 1.11.0 and other products, allows remote attackers to execute arbitrary code via a crafted JSON request, as demonstrated by a crafted rmi:// URI in the dataSourceName field of HTTP POST data to the Pippo /json URI, which is mishandled in AjaxApplication.java.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list a Nuclei template for it.
Show the exploits1
Nuclei templates1 template
- Fastjson Insecure Deserialization - Remote Code Execution (Nuclei template) (opens in a new tab)
http/cves/2017/CVE-2017-18349.yamlSeverity critical
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By mitre
Published
- 6 years later
· 6 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Critical9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 38.8% · top 1.4% of all CVEs (10 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Affected products
n/a
- affected n/a
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Mavencom.alibaba:fastjsonGHSA-xjrr-xv9m-4pw5 (opens in a new tab)
- Mavenro.pippo:pippo-fastjsonGHSA-xjrr-xv9m-4pw5 (opens in a new tab)
References
3
- https://fortiguard.com/encyclopedia/ips/44059 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/alibaba/fastjson/wiki/security_update_20170315 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/pippo-java/pippo/issues/466 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2018-0715 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-xjrr-xv9m-4pw5 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2017-18349)Record last updated .