cJSON up to 1.7.10 Multiline Comment memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
8.4$0-$5k0.00

Summaryinfo

A vulnerability was found in cJSON up to 1.7.10. It has been rated as critical. Affected by this vulnerability is an unknown functionality of the component Multiline Comment Handler. The manipulation leads to memory corruption. This vulnerability is traded as CVE-2019-11835. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in cJSON up to 1.7.10 and classified as critical. This issue affects an unknown function of the component Multiline Comment Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

cJSON before 1.7.11 allows out-of-bounds access, related to multiline comments.

The bug was discovered 02/20/2019. The weakness was shared 05/09/2019. The identification of this vulnerability is CVE-2019-11835 since 05/09/2019. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 78 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 1.7.11 eliminates this vulnerability.

The entry VDB-134518 is related to this item. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: cJSON 1.7.11

Timelineinfo

02/20/2019 🔍
05/09/2019 +78 days 🔍
05/09/2019 +0 days 🔍
05/09/2019 +0 days 🔍
07/22/2025 +2266 days 🔍

Sourcesinfo

Advisory: 338
Status: Confirmed

CVE: CVE-2019-11835 (🔍)
GCVE (CVE): GCVE-0-2019-11835
GCVE (VulDB): GCVE-100-134519
See also: 🔍

Entryinfo

Created: 05/09/2019 12:56
Updated: 07/22/2025 23:05
Changes: 05/09/2019 12:56 (55), 06/08/2020 12:59 (1), 09/15/2023 09:47 (6), 07/22/2025 23:05 (17)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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