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Public proof of conceptFix available

CVE-2018-7489

A public proof of concept exists; no exploitation attested.

  • Published2018-02-26
  • Fixed in2.9.5 · 2.8.11.1 · 2.7.9.3 · 2.6.7.5
  • WeaknessCWE-184 · CWE-502

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

FasterXML jackson-databind before 2.7.9.3, 2.8.x before 2.8.11.1 and 2.9.x before 2.9.5 allows unauthenticated remote code execution because of an incomplete fix for the CVE-2017-7525 deserialization flaw. This is exploitable by sending maliciously crafted JSON input to the readValue method of the ObjectMapper, bypassing a blacklist that is ineffective if the c3p0 libraries are available in the classpath.

Timeline

dates in UTC
  1. 2018-02-2615:29CVE publishedNVD
  2. 2026-10-2319:23First public proof of conceptPoC-in-GitHub
  3. 2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2018-7489?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2018-7489?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV
Fasterxml jackson-databind
BranchAffectedFixed in
2.9≥ 2.9.0, < 2.9.52.9.5
2.8≥ 2.8.0, < 2.8.11.12.8.11.1
2.7< 2.7.9.32.7.9.3
2.7≥ 2.7.0, < 2.7.9.32.7.9.3
2.6< 2.6.7.52.6.7.5
Debian debian linux
BranchAffectedFixed in
8.0= 8.0no fix published
9.0= 9.0no fix published
Oracle communications billing and revenue management
BranchAffectedFixed in
7.5= 7.5no fix published
12.0= 12.0no fix published

2 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. Update Fasterxml jackson-databind to 2.9.5 · 2.8.11.1 · 2.7.9.3 · 2.6.7.5

Detection

read 2026-10-23 19:23 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
1 repository, unverifiedtafamace/CVE-2018-7489
PoC-in-GitHub

Sources

  • CISA-ADPSSVC decisionnone2026-10-15
  • OpenCVESSVC decisionnone—
  • NVDCVSS 3.09.8read 2026-10-23
  • NVDCVSS 2.07.5read 2026-10-23
  • NVDweakness (CWE)CWE-184, CWE-502read 2026-10-23
  • FIRST EPSSEPSS score19.8 %read 2026-10-23
  • PoC-in-GitHubproof of concept1read 2026-10-23
  • OSVaffected packages—

Technical details

CVSS v3 Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2018-02-26
Last Modified
2026-10-15
NVD status
Modified

Frequently asked questions

What is CVE-2018-7489?

FasterXML jackson-databind before 2.7.9.3, 2.8.x before 2.8.11.1 and 2.9.x before 2.9.5 allows unauthenticated remote code execution because of an incomplete fix for the CVE-2017-7525 deserialization flaw. This is exploitable by sending maliciously crafted JSON input to the readValue method of the ObjectMapper, bypassing a blacklist that is ineffective if the c3p0 libraries are available in the classpath.

Is CVE-2018-7489 actively exploited?

Active exploitation of CVE-2018-7489 has not been confirmed. Its EPSS score was 19.8% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-7489?

CVE-2018-7489 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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