Notepad++ up to 8.9.6 out-of-bounds

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 (≈)
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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.
3.9$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Notepad++ up to 8.9.6. This impacts an unknown function. Such manipulation leads to out-of-bounds. This vulnerability is listed as CVE-2026-48778. The attack may be performed from remote. In addition, an exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Notepad++ up to 8.9.6 and classified as problematic. Affected by this issue is an unknown function. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is availability.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-48778. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details are unknown but a public exploit is available.

The exploit is available at github.com. It is declared as proof-of-concept.

Upgrading to version 8.9.6.1 eliminates this vulnerability. The upgrade is hosted for download at notepad-plus-plus.org. Applying the patch f20a0888a92ce557a339b833cd9d9d8e97dc797d is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Exploit-DB (52606) and EUVD (EUVD-2026-39907). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 3.9

VulDB Base Score: 4.3
VulDB Temp Score: 3.9
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Exploit-DB: 🔒

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Notepad++ 8.9.6.1
Patch: f20a0888a92ce557a339b833cd9d9d8e97dc797d

Timelineinfo

05/29/2026 Advisory disclosed
05/29/2026 +0 days VulDB entry created
06/27/2026 +29 days VulDB entry last update

Sourcesinfo

Advisory: GHSA-r39g-3mcw-xcg2
Status: Confirmed
Confirmation: 🔒

CVE: CVE-2026-48778 (🔒)
GCVE (CVE): GCVE-0-2026-48778
GCVE (VulDB): GCVE-100-367178
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 05/29/2026 13:11
Updated: 06/27/2026 23:32
Changes: 05/29/2026 13:11 (59), 06/04/2026 19:13 (1), 06/27/2026 23:32 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion

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