Trending
CVE-2021-21100

CVE detail

CVE-2021-21100

Adobe Digital Editions version 4.5.11.187245 (and earlier) is affected by a Privilege Escalation vulnerability during installation. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary file system write in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

CVSS 7.8 · HighBuzz score 11.9

Buzz score

Why this CVE is surfacing

Buzz score total 11.9

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 6.9 · diversity 5.0 · KEV 0.0 · OTX 0.0 · PoC 0.0

Mention score

6.9

1 evidence mentions in the snapshot

Diversity score

5.0

1 sources across 1 categories

KEV score

0.0

No KEV entry observed

OTX score

0.0

0 OTX pulses

PoC score

0.0

0 repos · best confidence N/A

Best PoC traction

Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions: 0; within the 30d window
Peak daily: 0; highest bucket

Evidence

Source links by recency

Newest mentions first

1 source links · newest first

Adobe addresses two critical vulnerabilities in PhotoshopSecurity Affairs
Adobe has addressed security vulnerabilities in Adobe Photoshop, Adobe Digital Editions, Adobe Bridge, and RoboHelp. Adobe has fixed ten security vulnerabilities in Adobe Photoshop, Adobe Digital Editions, Adobe Bridge, and RoboHelp. Seven vulnerabilities have been rated as critical, some of them could be exploited by remote attackers to execute arbitrary code. Adobe has released two […]
newssecurityaffairs.comApr 13, 2021, 5:56 PM

Exploit code

Public exploit repository references

Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

0 repository references · best confidence N/A · max 0 stars

No public PoC repositories have been matched yet.

Related records

Similar CVEs

6 related CVEs with shared weakness or product evidence

CVE-2021-39828
Adobe Digital Editions 4.5.11.187646 (and earlier) are affected by a privilege escalation vulnerability in the Digital Editions installer. An authenticated attacker could leverage…
CVSS 5.8 · Medium
CVE-2021-39827
Adobe Digital Editions 4.5.11.187646 (and earlier) are affected by an arbitrary file write vulnerability in the Digital Editions installer. An authenticated attacker could leverag…
CVSS 6.5 · Medium
CVE-2025-64896
Creative Cloud Desktop versions 6.4.0.361 and earlier are affected by a Creation of Temporary File in Directory with Incorrect Permissions vulnerability that could lead to applica…
CVSS 5.5 · Medium
CVE-2025-21162
Photoshop Elements versions 2025.0 and earlier are affected by a Creation of Temporary File in Directory with Incorrect Permissions vulnerability that could result in privilege es…
CVSS 5.5 · Medium
1 mention
CVE-2023-40438
An issue was addressed with improved handling of temporary files. This issue is fixed in macOS Sonoma 14, iOS 16.7 and iPadOS 16.7. An app may be able to access edited photos save…
CVSS 5.5 · Medium
CVE-2023-26396
Adobe Acrobat Reader versions 23.001.20093 (and earlier) and 20.005.30441 (and earlier) are affected by a Creation of Temporary File in Directory with Incorrect Permissions vulner…
CVSS 7.8 · High

External lookup

Potential internet exposure

Potential exposure only — not proof of vulnerability.Shodan results indicate potentially internet-exposed products, not confirmed vulnerable systems. They do not confirm that any returned system is vulnerable to CVE-2021-21100.

Product-level CPE searches intentionally omit version fields and NVD version-range or configuration certainty. Verify the exact product version and configuration independently.

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Product CPE queries

Derived from this CVE's existing NVD CPE 2.3 records; the application, operating-system, or hardware part is retained.

cpe:2.3:a:adobe:digital_editionsSearch this product on Shodan
cpe:2.3:o:apple:macosSearch this product on Shodan

Exact CVE query

Eligible paid Shodan plan required

Shodan's exact vuln: filter is separate from the product searches above and requires an eligible paid Shodan plan.

vuln:CVE-2021-21100Search this CVE on Shodan

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Metadata

Canonical fields

NVD status

Unavailable

Published

Apr 15, 2021

Modified

Jun 17, 2026

Official record

Authoritative NVD record

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE IDs

Vendor classifications

How this vector reads

CVSS 3.1 base metrics decoded below. This explanation does not recalculate or change the NVD score.

Attack Vector (AV): Local. The attacker needs local access to the vulnerable system.
Attack Complexity (AC): Low. No special conditions beyond the attacker-controlled steps are required.
Privileges Required (PR): None. The attacker needs no privileges on the vulnerable system.
User Interaction (UI): Required. Another user must take an action for exploitation to succeed.
Scope (S): Unchanged. Impacts remain within the vulnerable security authority.
Confidentiality Impact (C): High. There is a total or serious impact to this security property.
Integrity Impact (I): High. There is a total or serious impact to this security property.
Availability Impact (A): High. There is a total or serious impact to this security property.

Signals

Exploitation indicators

0 stored signals · no KEV · 0 OTX pulses