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CVE-2020-36325

23
FAUCET Score

CVE-2020-36325 describes an out-of-bounds read vulnerability in Jansson versions up to 2.13.1, stemming from a parsing error in the json_loads function. This vulnerability is rated as High severity (CVSS 7.5), indicating it can be exploited remotely with low complexity and lead to high availability impact, though the vendor notes it arises from API misuse. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.13.1CPE matchmatch criteria
cpe:2.3:a:jansson_project:jansson:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.72%
Probability of exploitation in next 30 days
EPSS Percentile
75.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0172 is in the 58th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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 (6)

microsoftpatch availablevia msrc
Product: 19121-16820Fixed in: 2.11-3
microsoftpatch availablevia msrc
Product: 19122-16823Fixed in: 2.14-1
microsoftpatch availablevia msrc
Product: cm1 jansson 2.11-3 on CBL Mariner 1.0Fixed in: 2.11-3
microsoftpatch availablevia msrc
Product: cbl2 jansson 2.14-1 on CBL Mariner 2.0Fixed in: 2.14-1
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 x64Fixed in: 2.14-1
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 ARMFixed in: 2.14-1

Vendor Advisories (3)

microsoft2021-Dec/CVE-2020-36325

CVE-2020-36325

Dec 14, 2021
microsoft2021-Apr/CVE-2020-36325Important

An issue was discovered in Jansson through 2.13.1. Due to a parsing error in json_loads there's an out-of-bounds read-access bug. NOTE: the vendor reports that this only occurs when a programmer fails to follow the API specification

Apr 13, 2021
redhatCVE-2020-36325Moderate

jansson: out-of-bounds read in json_loads() due to a parsing error

Sep 1, 2020

References

github.com / akheron/jansson/issues/548
ExploitThird Party Advisory