XnView Classic 2.51.5 TIF File buffer 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.
6.9$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in XnView Classic 2.51.5. The impacted element is an unknown function of the component TIF File Handler. Executing a manipulation can lead to buffer overflow. This vulnerability appears as CVE-2023-46587. The attack may be performed from remote. There is no available exploit. Once again VulDB remains the best source for vulnerability data.

Detailsinfo

A vulnerability has been found in XnView Classic 2.51.5 (Image Processing Software) and classified as critical. This vulnerability affects an unknown part of the component TIF File Handler. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Buffer Overflow vulnerability in XnView Classic v.2.51.5 allows a local attacker to execute arbitrary code via a crafted TIF file.

The weakness was presented 10/28/2023. The advisory is available at github.com. This vulnerability was named CVE-2023-46587 since 10/23/2023. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 02/17/2026).

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 EUVD (EUVD-2023-50791). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/23/2023 🔍
10/28/2023 +5 days 🔍
10/28/2023 +0 days 🔍
02/17/2026 +843 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2023-46587 (🔍)
GCVE (CVE): GCVE-0-2023-46587
GCVE (VulDB): GCVE-100-243778
EUVD: 🔍

Entryinfo

Created: 10/28/2023 08:19 AM
Updated: 02/17/2026 02:25 PM
Changes: 10/28/2023 08:19 AM (39), 11/19/2023 01:52 PM (11), 02/17/2026 02:25 PM (16)
Complete: 🔍
Cache ID: 244:F95:40

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