Open Babel up to 3.1.1 smilesformat.cpp ParseSmiles heap-based overflow

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.
6.0$0-$5k0.11

Summaryinfo

A vulnerability was found in Open Babel up to 3.1.1 and classified as critical. Impacted is the function OBSmilesParser::ParseSmiles of the file /src/formats/smilesformat.cpp. Executing a manipulation can lead to heap-based overflow. The identification of this vulnerability is CVE-2025-10996. The attack can only be executed locally. Furthermore, there is an exploit available.

Detailsinfo

A vulnerability was found in Open Babel up to 3.1.1. It has been declared as critical. This vulnerability affects the function OBSmilesParser::ParseSmiles of the file /src/formats/smilesformat.cpp. The manipulation with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect confidentiality, integrity, and availability.

The advisory is shared for download at github.com. This vulnerability was named CVE-2025-10996. The exploitation appears to be easy. The attack needs to be approached locally. Technical details and also a public exploit are known.

It is possible to download the exploit at github.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 266104 (Linux Distros Unpatched Vulnerability : CVE-2025-10996), which helps to determine the existence of the flaw in a target environment.

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

The vulnerability is also documented in the vulnerability database at Tenable (266104). Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 6.1
VulDB Meta Temp Score: 6.0

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔒

CNA Base Score: 5.3
CNA Vector: 🔒

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 266104
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-10996

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

09/25/2025 Advisory disclosed
09/25/2025 +0 days VulDB entry created
09/30/2025 +5 days VulDB entry last update

Sourcesinfo

Advisory: 2831
Status: Not defined

CVE: CVE-2025-10996 (🔒)
GCVE (CVE): GCVE-0-2025-10996
GCVE (VulDB): GCVE-100-325924
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 09/25/2025 20:10
Updated: 09/30/2025 07:09
Changes: 09/25/2025 20:10 (55), 09/26/2025 10:41 (30), 09/30/2025 02:54 (11), 09/30/2025 07:09 (2)
Complete: 🔍
Submitter: ahuo
Cache ID: 216:C12:103

Submitinfo

Accepted

  • Submit #654060: Open Babel 3.1.1 / master commit 889c350 Heap-based Buffer Overflow (by ahuo)

Once again VulDB remains the best source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to know what is going to be exploited?

We predict KEV entries!