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CVE-2018-1851

31
FAUCET Score

CVE-2018-1851 is a critical deserialization vulnerability affecting IBM WebSphere Application Server Liberty. A remote attacker can exploit this flaw by sending a specially crafted request to the RP service, leading to arbitrary code execution on the system. With a CVSS score of 9.8 (CRITICAL), this vulnerability has a network attack vector, low attack complexity, and high impacts on confidentiality, integrity, and availability. While no public exploits, Metasploit modules, or Nuclei templates are available, and there's no evidence of active exploitation, its high severity warrants attention.

Impacted Technologies

VendorProductVersion(s)CPE
< 18.0.0.3CPE matchmatch criteria
cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:liberty:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.3HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
3.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.87%
Probability of exploitation in next 30 days
EPSS Percentile
89.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0387 is in the 82nd percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

exchange.xforce.ibmcloud.com / vulnerabilities/150999
VDB EntryVendor Advisory
ibm.com / support/docview.wss
PatchVendor Advisory
securityfocus.com / bid/105839
Third Party AdvisoryVDB Entry