CVE-2021-39855— Adobe Acrobat和Adobe Reader 信息泄露漏洞
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I. CVE-2021-39855の基本情報
脆弱性情報
脆弱性についてご質問がありますか？Shenlongの分析が参考になるかご確認ください！
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脆弱性タイトル
Adobe Acrobat Reader DC NTLMv2 SSO Information Disclosure via src Parameter
ソース: NVD (National Vulnerability Database)
脆弱性説明
Acrobat Reader DC ActiveX Control versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by an Information Disclosure vulnerability. An unauthenticated attacker could leverage this vulnerability to obtain NTLMv2 credentials. Exploitation of this issue requires user interaction in that a victim must open a maliciously crafted Microsoft Office file, or visit an attacker controlled web page.
ソース: NVD (National Vulnerability Database)
CVSS情報
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
ソース: NVD (National Vulnerability Database)
脆弱性タイプ
信息暴露
ソース: NVD (National Vulnerability Database)
脆弱性タイトル
Adobe Acrobat和Adobe Reader 信息泄露漏洞
ソース: CNNVD (China National Vulnerability Database)
脆弱性説明
Adobe Acrobat和Adobe Reader都是美国奥多比（Adobe）公司的产品。Adobe Acrobat是一套PDF文件编辑和转换工具。Adobe Reader是一套PDF文档阅读软件。 Adobe Acrobat 和 Reader存在信息泄露漏洞，该漏洞的存在是由于一个NULL指针解除引用错误。远程攻击者可利用该漏洞可以欺骗受害者打开一个特制的文件并执行拒绝服务(DoS)攻击。该漏洞允许远程攻击者可利用该漏洞执行拒绝服务(DoS)攻击。
ソース: CNNVD (China National Vulnerability Database)
CVSS情報
N/A
ソース: CNNVD (China National Vulnerability Database)
脆弱性タイプ
N/A
ソース: CNNVD (China National Vulnerability Database)
影響を受ける製品
| ベンダー | プロダクト | 影響を受けるバージョン | CPE | 購読 |
|---|---|---|---|---|
| Adobe | Acrobat Reader | unspecified ~ 2020.004.30006 | - |
II. CVE-2021-39855の公開POC
| # | POC説明 | ソースリンク | Shenlongリンク |
|---|
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公開POCは見つかりませんでした。
ログインしてAI POCを生成III. CVE-2021-39855のインテリジェンス情報
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- https://helpx.adobe.com/security/products/acrobat/apsb21-55.htmlx_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-39855
Same Patch Batch · Adobe · 2021-09-29 · 41 CVEs total
| CVE-2021-39831 | 7.8 HIGH | Adobe FrameMaker PDF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability |
| CVE-2021-39863 | 7.8 HIGH | Adobe Acrobat Reader DC Heap-based Buffer Overflow Vulnerability Could Lead To Arbitrary C |
| CVE-2021-40715 | 7.8 HIGH | Adobe Premiere Pro 2021 EXR File Parsing Leads to Memory Corruption |
| CVE-2021-39843 | 7.8 HIGH | Adobe Acrobat Reader XObject Out-of-Bound Write Vulnerability |
| CVE-2021-40708 | 7.3 HIGH | Adobe Genuine Service Installer Privilege Escalation Vulnerability |
| CVE-2021-39856 | 6.5 MEDIUM | Adobe Acrobat Reader DC NTLMv2 SSO Information Disclosure via LoadFile |
| CVE-2021-39846 | 6.1 MEDIUM | Adobe Acrobat Reader /Parent Property Recursive Stack Overflow |
| CVE-2021-39845 | 6.1 MEDIUM | Adobe Acrobat Reader Page Tree Node Recursive Stack Overflow |
| CVE-2021-39861 | 5.5 MEDIUM | Adobe Acrobat Reader DC Catalog Plugin Out-of-Bounds Read Bug |
| CVE-2021-39851 | 5.5 MEDIUM | Adobe Acrobat Reader DC Null Pointer Dereference Could Lead To Application Denial-of-Servi |
| CVE-2021-39852 | 5.5 MEDIUM | Adobe Acrobat Reader DC Null Pointer Dereference Could Lead To Application Denial-of-Servi |
| CVE-2021-39850 | 5.5 MEDIUM | Adobe Acrobat Reader DC Null Pointer Dereference Could Lead To Application Denial-of-Servi |
| CVE-2021-39849 | 5.5 MEDIUM | Adobe Acrobat Reader DC Null Pointer Dereference Could Lead To Application Denial-of-Servi |
| CVE-2021-39860 | 5.5 MEDIUM | Adobe Acrobat Reader DC Search Plugin Null Pointer Dereference |
| CVE-2021-39844 | 3.3 LOW | Adobe Acrobat Reader CalRGB Out-of-Bounds Read Vulnerability |
| CVE-2021-39832 | Adobe FrameMaker PDF File Parsing Memory Corruption Remote Code Execution Vulnerability | |
| CVE-2021-39836 | Adobe Acrobat Reader DC AcroForm buttonGetIcon Use-After-Free Remote Code Execution Vulner | |
| CVE-2021-39835 | Adobe FrameMaker PDF File Parsing Use-After-Free Information Disclosure Vulnerability | |
| CVE-2021-39837 | Adobe Acrobat Reader DC AcroForm deleteItemAt Use-After-Free Remote Code Execution Vulnera | |
| CVE-2021-39839 | Adobe Acrobat Reader DC AcroForm getItemAt Use-After-Free Remote Code Execution Vulnerabil |
Showing 20 of 41 CVEs. View all on vendor page →
IV. 関連脆弱性
同じ製品: Acrobat Reader
- CVE-2026-34622
Acrobat Reader | Improperly Controlled Modification of Objec - CVE-2026-34626
Acrobat Reader | Improperly Controlled Modification of Objec - CVE-2026-34621
Acrobat Reader | Improperly Controlled Modification of Objec - CVE-2026-27221
Acrobat Reader | Improper Certificate Validation (CWE-295) - CVE-2026-27278
Acrobat Reader | Use After Free (CWE-416)
同じベンダー: Adobe
- CVE-2026-34632
Photoshop Installer | CWE-427: Uncontrolled Search Path Elem - CVE-2026-27297
Adobe Framemaker | Integer Underflow (Wrap or Wraparound) (C - CVE-2026-27300
Adobe Framemaker | Access of Uninitialized Pointer (CWE-824) - CVE-2026-27296
Adobe Framemaker | Integer Underflow (Wrap or Wraparound) (C - CVE-2026-27290
Adobe Framemaker | Untrusted Search Path (CWE-426)
同じ弱点: CWE-200
- CVE-2026-42333
quarkus-openapi-generator has overly broad path-parameter ma - CVE-2026-8198
Activity Logs, User Activity Tracking, Multisite Activity Lo - CVE-2026-42456
AnythingLLM: Cross-User TTS Audio Disclosure via Chat ID (ID - CVE-2026-41520
Cillium exposes sensitive information included in the cilium - CVE-2026-25199
Apache CloudStack: Proxmox Extension Allows Unauthorized Cro
V. CVE-2021-39855へのコメント
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