CVE-2026-85995— Notepad++: Authenticode verification bypass allows modified updater execution
一分钟漏洞结论
影响对象
notepad-plus-plus notepad-plus-plus
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
Notepad++ is a free and open-source source code editor. From 8.9.7 until 8.9.8, the Notepad++ updater and signature verification path can accept a modified GUP.exe file whose embedded certificate metadata remains present even though its Authenticode digest is
影响版本矩阵 1
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| notepad-plus-plus | notepad-plus-plus | < 8.9.8 |
affected |
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一、 漏洞 CVE-2026-85995 基础信息
漏洞信息
尽管我们使用了先进的大模型技术，但其输出仍可能包含不准确或过时的信息。神龙努力确保数据的准确性，但请您根据实际情况进行核实和判断。
Vulnerability Title
Notepad++: Authenticode verification bypass allows modified updater execution
来源: CVE Program / CVE List V5
Vulnerability Description
Notepad++ is a free and open-source source code editor. From 8.9.7 until 8.9.8, the Notepad++ updater and signature verification path can accept a modified GUP.exe file whose embedded certificate metadata remains present even though its Authenticode digest is invalid. An attacker who can replace or plant the updater-related file can cause Notepad++ to launch attacker-modified code when a user triggers the updater path, but the issue does not provide remote code execution by itself. This issue is fixed in version 8.9.8.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
密码学签名的验证不恰当
来源: CVE Program / CVE List V5
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| notepad-plus-plus | notepad-plus-plus | < 8.9.8 | - |
|
二、漏洞 CVE-2026-85995 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
AI 生成 POC
高级
未找到公开 POC。
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CVE-2026-85995 其他参考 (4)
-
https://notepad-plus-plus.org/news/v898-released x_refsource_MISC
同批安全公告 · notepad-plus-plus · 2026-09-22 · 共 6 条
| CVE-2026-85279 | 8.6 HIGH | Notepad++: Stack Buffer Overflow in Plugin Lexer Loading via Unchecked GetLexerCount() Ret |
| CVE-2026-77605 | 7.8 HIGH | Notepad++ “Run by system” executes *.txt.cmd when user selected *.txt (target confusion → |
| CVE-2026-86054 | 7.8 HIGH | Notepad++: Stack Buffer Overflow in `NppParameters::writeSession` via overlong session pat |
| CVE-2026-85288 | 6.7 MEDIUM | Notepad++: Shortcuts.xml macro HMAC bypass still reachable via the "Run a Macro Multiple T |
| CVE-2026-86056 | 5.5 MEDIUM | Notepad++: Null pointer dereference in NPPM_SAVESESSION message handler causes crash (DoS) |
IV. Related Vulnerabilities
Same product: notepad-plus-plus
-
CVE-2026-86056
Notepad++: Null pointer dereference in NPPM_SAVESESSION mess -
CVE-2026-77605
Notepad++ “Run by system” executes *.txt.cmd when user selec -
CVE-2026-86054
Notepad++: Stack Buffer Overflow in `NppParameters::writeSes -
CVE-2026-85288
Notepad++: Shortcuts.xml macro HMAC bypass still reachable v -
CVE-2026-85279
Notepad++: Stack Buffer Overflow in Plugin Lexer Loading via
Same vendor: notepad-plus-plus
-
CVE-2026-86056
Notepad++: Null pointer dereference in NPPM_SAVESESSION mess -
CVE-2026-77605
Notepad++ “Run by system” executes *.txt.cmd when user selec -
CVE-2026-86054
Notepad++: Stack Buffer Overflow in `NppParameters::writeSes -
CVE-2026-85288
Notepad++: Shortcuts.xml macro HMAC bypass still reachable v -
CVE-2026-85279
Notepad++: Stack Buffer Overflow in Plugin Lexer Loading via
Same weakness: CWE-347
-
CVE-2026-95503
Keycloak-services: keycloak-services: potential kdc spoofing -
CVE-2026-75939
Openshift/oc-mirror: release signature verification: openpgp -
CVE-2026-94368
Noobaa-core: noobaa-core: presigned put url escalation to co -
CVE-2026-9832
Stripe for WooCommerce 5.0.8 签名验证漏洞 -
CVE-2026-59163
Mnemosyne 服务器 JWT签名验证绕过漏洞
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