VDB-317287 · CVE-2025-36520 · TALOS-2025-2197

Bloomberg Comdb2 8.1 net_connectmsg Protocol Buffer Message null pointer dereference

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	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.
7.3	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Bloomberg Comdb2 8.1. It has been classified as problematic. This vulnerability affects unknown code of the component net_connectmsg Protocol Buffer Message Handler. This manipulation causes null pointer dereference. This vulnerability is tracked as CVE-2025-36520. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability classified as critical was found in Bloomberg Comdb2 8.1. Affected by this vulnerability is an unknown code block of the component net_connectmsg Protocol Buffer Message Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. The summary by CVE is:

A null pointer dereference vulnerability exists in the net_connectmsg Protocol Buffer Message functionality of Bloomberg Comdb2 8.1. A specially crafted network packets can lead to a denial of service. An attacker can send packets to trigger this vulnerability.

It is possible to read the advisory at talosintelligence.com. This vulnerability is known as CVE-2025-36520 since 05/22/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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

Productinfo

Vendor

Bloomberg

Name

Comdb2

Version

CPE 2.3info

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CPE 2.2info

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CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (talos): 🔒

CVSSv2info

AV	AC	Au	C	I	A
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

05/22/2025 CVE reserved
07/22/2025 +61 days Advisory disclosed
07/22/2025 +0 days VulDB entry created
07/24/2025 +2 days VulDB entry last update

Sourcesinfo

Advisory: TALOS-2025-2197
Status: Not defined

CVE: CVE-2025-36520 (🔒)
GCVE (CVE): GCVE-0-2025-36520
GCVE (VulDB): GCVE-100-317287

Entryinfo

Created: 07/22/2025 22:07
Updated: 07/24/2025 03:55
Changes: 07/22/2025 22:07 (63), 07/24/2025 03:55 (1)
Complete: 🔍
Cache ID: 216::103