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CVE-2025-9403

20
FAUCET Score

CVE-2025-9403 is a medium-severity vulnerability affecting jqlang jq up to version 1.6, specifically within the run_jq_tests function of the JSON Parser component. This local vulnerability, requiring low privileges and complexity, can lead to a reachable assertion, resulting in high availability impact. While a public exploit has been disclosed, there is currently no evidence of active exploitation, and it has garnered minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.6CPE matchmatch criteria
cpe:2.3:a:jqlang:jq:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

1.9LOW

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
VS Confidentiality
NONE
VS Integrity
NONE
VS Availability
LOW
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
PROOF_OF_CONCEPT
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.21%
Probability of exploitation in next 30 days
EPSS Percentile
11.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0021 is in the 53rd percentile among its peer group of 15,940 CVEs.

Social Chatter

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

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (15)

microsoftpatch availablevia msrc
Product: azl3 jq 1.7.1-8 on Azure Linux 3.0Fixed in: 1.7.1-8
microsoftpatch availablevia msrc
Product: 20251-17086Fixed in: 1.6-5
microsoftpatch availablevia msrc
Product: 20607-17086Fixed in: 1.6-5
microsoftpatch availablevia msrc
Product: 21415-17084Fixed in: 1.7.1-7
microsoftpatch availablevia msrc
Product: 21521-17084Fixed in: 1.7.1-8
microsoftpatch availablevia msrc
Product: cbl2 jq 1.6-4 on CBL Mariner 2.0Fixed in: 1.6-5
microsoftpatch availablevia msrc
Product: cbl2 jq 1.6-5 on CBL Mariner 2.0Fixed in: 1.6-5
microsoftpatch availablevia msrc
Product: azl3 jq 1.7.1-6 on Azure Linux 3.0Fixed in: 1.7.1-7
github_advisoryvendor investigatingvia nvd_reference
View patch
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 10Fixed in: jq
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: jq
redhatvendor investigatingvia redhat_api
Product: Red Hat Ceph Storage 4Fixed in: jq
redhatvendor investigatingvia redhat_api
Product: Red Hat Trusted Application PipelineFixed in: rhtap-cli/rhtap-cli-rhel9
redhatvendor investigatingvia redhat_api
Product: Red Hat Ansible Automation Platform 2Fixed in: automation-controller
redhatvendor investigatingvia redhat_api
Product: Red Hat OpenShift Container Platform 4Fixed in: rhcos

Vendor Advisories (2)

redhatCVE-2025-9403Low

jq: assertion failure in run_jq_tests() of the file jq_test.c

Aug 25, 2025
microsoft2025-Aug/CVE-2025-9403Moderate

jqlang jq JSON jq_test.c run_jq_tests assertion

Aug 12, 2025

References

drive.google.com / file/d/1r8m9PhU_rk-QPj6OMcs415FcvWPD-zJY/view
Exploit
github.com / jqlang/jq/issues/3393
ExploitIssue TrackingVendor Advisory
vuldb.com
Permissions RequiredVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry
vuldb.com
ExploitThird Party AdvisoryVDB Entry