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NVD / CVE Program· CNA mitre

CVE-2025-57052: cJSON 1.5.0 through 1.7.18 allows out-of-bounds access via the decode_array_index_from_pointer function in cJSON_Utils.c, allowing remote at

Noroxi assessment

Priority: Monitor (action score 39/100)

  • Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.74% (FIRST EPSS); higher than 54.9% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • According to CISA the attack is automatable: targets can be found by mass scanning.
  • Fixed version: cjson (Alpine:v3.19) 1.7.19-r0; cjson (Debian:11) 1.7.14-1+deb11u3; cjson (Debian:12) 1.7.15-1+deb12u4.

Low priority for now. Upgrade to cjson (Alpine:v3.19) 1.7.19-r0; cjson (Debian:11) 1.7.14-1+deb11u3; cjson (Debian:12) 1.7.15-1+deb12u4 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

cJSON 1.5.0 through 1.7.18 allows out-of-bounds access via the decode_array_index_from_pointer function in cJSON_Utils.c, allowing remote attackers to bypass array bounds checking and access restricted data via malformed JSON pointer strings containing alphanumeric characters.

CriticalCVSS 9.8 · v3.1—Proof of concept Fix available
Published
Sep 3, 2025
Updated
Nov 7, 2026
EPSS
0.7% · 54th percentile

Report tools

JSON

Action score

39

Monitor

Low priority for now.

CVSS
39 / 40 · 9.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.7%

CISA SSVC decision

Exploitation
proof of concept
Automatable
yes
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • Proof of concept exists, no weaponized module
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2025-57052

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
davegamblecjson

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • davegamble cjson1.5.0 and later · up to 1.7.18 inclusive

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Alpine:v3.19cjsonfrom 1.5.0 · before 1.7.19-r01.7.19-r0
Debian:11cjsonbefore 1.7.14-1+deb11u31.7.14-1+deb11u3
Debian:12cjsonbefore 1.7.15-1+deb12u41.7.15-1+deb12u4
Debian:13cjsonbefore 1.7.18-3.1+deb13u11.7.18-3.1+deb13u1
Debian:14cjsonbefore 1.7.19-11.7.19-1
openSUSE:Leap 16.0cJSONbefore 1.7.19-160000.1.11.7.19-160000.1.1
openSUSE:TumbleweedcJSONbefore 1.7.19-1.11.7.19-1.1
Red Hat:satellite_capsule:6.15::el8puppet-agentbefore 0:7.34.0-4.el8sat0:7.34.0-4.el8sat
Red Hat:satellite_capsule:6.16::el8cjsonbefore 0:1.7.18-2.el8sat0:1.7.18-2.el8sat
Red Hat:satellite_capsule:6.16::el8cjson-debuginfobefore 0:1.7.18-2.el8sat0:1.7.18-2.el8sat
Red Hat:satellite_capsule:6.16::el8cjson-debugsourcebefore 0:1.7.18-2.el8sat0:1.7.18-2.el8sat
Red Hat:satellite_capsule:6.16::el8puppet-agentbefore 0:8.8.1-3.el8sat0:8.8.1-3.el8sat
Red Hat:satellite_capsule:6.16::el8python-djangobefore 0:4.2.24-0.1.el8pc0:4.2.24-0.1.el8pc
Red Hat:satellite_capsule:6.16::el8python3.11-djangobefore 0:4.2.24-0.1.el8pc0:4.2.24-0.1.el8pc
Red Hat:satellite_capsule:6.17::el9cjsonbefore 0:1.7.18-2.el9sat0:1.7.18-2.el9sat
Red Hat:satellite_capsule:6.17::el9cjson-debuginfobefore 0:1.7.18-2.el9sat0:1.7.18-2.el9sat
Red Hat:satellite_capsule:6.17::el9cjson-debugsourcebefore 0:1.7.18-2.el9sat0:1.7.18-2.el9sat
Red Hat:satellite_capsule:6.17::el9puppet-agentbefore 0:8.8.1-3.el9sat0:8.8.1-3.el9sat
Red Hat:satellite_capsule:6.17::el9python-djangobefore 0:4.2.24-0.1.el9pc0:4.2.24-0.1.el9pc
Red Hat:satellite_capsule:6.17::el9python3.11-djangobefore 0:4.2.24-0.1.el9pc0:4.2.24-0.1.el9pc
SUSE:Linux Enterprise Workstation Extension 15 SP7cJSONbefore 1.7.19-150700.3.3.11.7.19-150700.3.3.1

Same product

davegamble: all records

Other highest-scoring records for the same primary product.

  • CVE-2019-11835cJSON before 1.7.11 allows out-of-bounds access, related to multiline comments.
    40Plan
  • CVE-2019-11834cJSON before 1.7.11 allows out-of-bounds access, related to \x00 in a string literal.
    40Plan
  • CVE-2016-10749parse_string in cJSON.c in cJSON before 2016-10-02 has a buffer over-read, as demonstrated by a string that begins with a " character and en
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2023-50471Dec 14, 2023 · cJSON v1.7.16 was discovered to contain a segmentation violation via the function cJSON_InsertItemInArray at cJSON.c.
    30Monitor
  • ← EarlierCVE-2023-50472Dec 14, 2023 · cJSON v1.7.16 was discovered to contain a segmentation violation via the function cJSON_SetValuestring at cJSON.c.
    30Monitor
  • Later →CVE-2026-16554Jul 27, 2026 · Integer Overflow Leading to Heap Buffer Overflow in cJSON
    20Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
alpine:cjson1.7.19-r0 · Alpine:v3.19Package registry (OSV)
debian:cjson1.7.15-1+deb12u4 · Debian:12Package registry (OSV)
opensuse:cJSON1.7.19-1.1 · openSUSE:TumbleweedPackage registry (OSV)
red hat:cjson0:1.7.18-2.el9sat · Red Hat:satellite_capsule:6.17::el9Package registry (OSV)
red hat:cjson-debuginfo0:1.7.18-2.el9sat · Red Hat:satellite_capsule:6.17::el9Package registry (OSV)
red hat:cjson-debugsource0:1.7.18-2.el9sat · Red Hat:satellite_capsule:6.17::el9Package registry (OSV)
red hat:puppet-agent0:8.8.1-3.el9sat · Red Hat:satellite_capsule:6.17::el9Package registry (OSV)
red hat:python-django0:4.2.24-0.1.el9pc · Red Hat:satellite_capsule:6.17::el9Package registry (OSV)
red hat:python3.11-django0:4.2.24-0.1.el9pc · Red Hat:satellite_capsule:6.17::el9Package registry (OSV)
suse:cJSON1.7.19-150700.3.3.1 · SUSE:Linux Enterprise Workstation Extension 15 SP7Package registry (OSV)

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Proof-of-concept repository on GitHub ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Proof-of-concept repository on GitHubstars:02026-08-02

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Published
  2. First PoC+332 d
  3. TodayNov 9, 2026+432 d

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-125 · Out-of-bounds Read

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records